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DNS-problem - authoritative Nameserver refused, not defined or timeout

Checked:
02.10.2026 22:41:06

Older results

X - 16.09.2026 08:25:12

I - 22.06.2026 12:08:44

I - 13.11.2025 09:52:29

I - 13.11.2025 09:00:29

I - 26.10.2025 22:04:19

I - 01.10.2025 10:07:23

I - 10.09.2025 09:52:54

I - 05.09.2025 22:26:24

X - 27.05.2025 15:24:02

X - 15.05.2025 14:17:49

1. IP-Addresses

Host	Type	IP-Address	is auth.	∑ Queries	∑ Timeout
alfa-system.pl	A	91.231.70.31 Knurów/Silesia/Poland (PL) - Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j Hostname: proxy1.alfa-system.pl	yes	2	0
	AAAA	2a0f:1700:1::501 Knurów/Silesia/Poland (PL) - Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j	yes
www.alfa-system.pl	CNAME	alfa-system.pl	yes	1	0
	A	91.231.70.31 Knurów/Silesia/Poland (PL) - Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j Hostname: proxy1.alfa-system.pl	yes
	AAAA	2a0f:1700:1::501 Knurów/Silesia/Poland (PL) - Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j	yes
*.alfa-system.pl	A	Name Error	yes
	AAAA	Name Error	yes
	CNAME	Name Error	yes
mta-sts.alfa-system.pl	A	91.231.70.31 No Hostname found	yes
	AAAA	2a0f:1700:1::501	yes

2. DNSSEC

Zone (*)	DNSSEC - Informations

Zone: (root)
(root)	1 DS RR published


	DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest 4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=


	• Status: Valid because published


	4 DNSKEY RR found


	Public Key with Algorithm 8, KeyTag 8763, Flags 256


	Public Key with Algorithm 8, KeyTag 20326, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 8, KeyTag 38696, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 8, KeyTag 57780, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 22.10.2026, 00:00:00 +, Signature-Inception: 01.10.2026, 00:00:00 +, KeyTag 20326, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 20326 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 20326, DigestType 2 and Digest "4G1EuAuPHTmpXAsNfGXQhFjogECbvGg0VxBCN8f47I0=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: pl
pl	1 DS RR in the parent zone found


	DS with Algorithm 8, KeyTag 2782, DigestType 2 and Digest wf5zeN61WURyGhoyn3ifp7oDGAzvUwrUQOfQOnd7URY=


	1 RRSIG RR to validate DS RR found


	RRSIG-Owner pl., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 15.10.2026, 17:00:00 +, Signature-Inception: 02.10.2026, 16:00:00 +, KeyTag 8763, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 8763 used to validate the DS RRSet in the parent zone


	2 DNSKEY RR found


	Public Key with Algorithm 8, KeyTag 2782, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 8, KeyTag 15186, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner pl., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 27.10.2026, 12:00:00 +, Signature-Inception: 27.09.2026, 12:00:00 +, KeyTag 2782, Signer-Name: pl


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 2782 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 2782, DigestType 2 and Digest "wf5zeN61WURyGhoyn3ifp7oDGAzvUwrUQOfQOnd7URY=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: alfa-system.pl
alfa-system.pl	0 DS RR in the parent zone found


	DS-Query in the parent zone has a valid NSEC3 RR as result with the hashed query name "5vmrl8l1i2k1fp6bukplreu2p3539hfb" between the hashed NSEC3-owner "5vmrkc7qgrav04e33t8mutknkgq77d6s" and the hashed NextOwner "5vmtr49pjsm3lftrq5irtou2enoveku8". So the parent zone confirmes the not-existence of a DS RR. Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner 5vmrkc7qgrav04e33t8mutknkgq77d6s.pl., Algorithm: 8, 2 Labels, original TTL: 3600 sec, Signature-expiration: 27.10.2026, 12:00:00 +, Signature-Inception: 27.09.2026, 12:00:00 +, KeyTag 15186, Signer-Name: pl


	DS-Query in the parent zone sends valid NSEC3 RR with the Hash "nh60qq3v9pk6edim885s62rjmoj36p2m" as Owner. That's the Hash of "pl" with the NextHashedOwnerName "nh61j31jbve06vpggbdpdgp623a475fe". So that domain name is the Closest Encloser of "alfa-system.pl". Opt-Out: True. Bitmap: NS, SOA, TXT, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner nh60qq3v9pk6edim885s62rjmoj36p2m.pl., Algorithm: 8, 2 Labels, original TTL: 3600 sec, Signature-expiration: 27.10.2026, 12:00:00 +, Signature-Inception: 27.09.2026, 12:00:00 +, KeyTag 15186, Signer-Name: pl


	4 DNSKEY RR found


	Public Key with Algorithm 7, KeyTag 20535, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 13, KeyTag 24338, Flags 256


	Public Key with Algorithm 7, KeyTag 31979, Flags 256


	Public Key with Algorithm 13, KeyTag 63203, Flags 257 (SEP = Secure Entry Point)


	4 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner alfa-system.pl., Algorithm: 7, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 20535, Signer-Name: alfa-system.pl


	RRSIG-Owner alfa-system.pl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	RRSIG-Owner alfa-system.pl., Algorithm: 7, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 31979, Signer-Name: alfa-system.pl


	RRSIG-Owner alfa-system.pl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 63203, Signer-Name: alfa-system.pl


	• Status: Good - Algorithmus 7 and DNSKEY with KeyTag 20535 used to validate the DNSKEY RRSet


	• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 24338 used to validate the DNSKEY RRSet


	• Status: Good - Algorithmus 7 and DNSKEY with KeyTag 31979 used to validate the DNSKEY RRSet


	• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 63203 used to validate the DNSKEY RRSet


	Error: DNSKEY 20535 signs DNSKEY RRset, but no confirming DS RR in the parent zone found. No chain of trust created.


	Error: DNSKEY 24338 signs DNSKEY RRset, but no confirming DS RR in the parent zone found. No chain of trust created.


	Error: DNSKEY 31979 signs DNSKEY RRset, but no confirming DS RR in the parent zone found. No chain of trust created.


	Error: DNSKEY 63203 signs DNSKEY RRset, but no confirming DS RR in the parent zone found. No chain of trust created.


	RRSIG Type 1 validates the A - Result: 91.231.70.31 Validated: RRSIG-Owner alfa-system.pl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	RRSIG Type 1 validates the A - Result: 91.231.70.31 Validated: RRSIG-Owner alfa-system.pl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	RRSIG Type 16 validates the TXT - Result: security_contact=mailto:admin@alfa-system.pl v=spf1 mx ip4:91.231.70.0/26 ip6:2a0f:1700:1::400/120 ~all mojecertpl-site-verification-iQVFUyLrUpdnvZyiaq6zMHQX5j2LOwa3 a9cce21c94f6df8f022e7574f3dc34522d17786f379e3a065d5dd0eb75048a5 yahoo-verification-key=BWghRcJbevVm89twByyDUQTZGFOvnHXwRlHE+CPkUn4= google-site-verification=GuuCVq6tlB8bSvSVE0MpGp01qENHXzU-G-f7eRNsoHE google-site-verification=fiQgZcQ7LMFYHBsyMTMTJLoidnRuidHO9vvCTHOnysQ Validated: RRSIG-Owner alfa-system.pl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	RRSIG Type 16 validates the TXT - Result: security_contact=mailto:admin@alfa-system.pl v=spf1 mx ip4:91.231.70.0/26 ip6:2a0f:1700:1::400/120 ~all mojecertpl-site-verification-iQVFUyLrUpdnvZyiaq6zMHQX5j2LOwa3 a9cce21c94f6df8f022e7574f3dc34522d17786f379e3a065d5dd0eb75048a5 yahoo-verification-key=BWghRcJbevVm89twByyDUQTZGFOvnHXwRlHE+CPkUn4= google-site-verification=GuuCVq6tlB8bSvSVE0MpGp01qENHXzU-G-f7eRNsoHE google-site-verification=fiQgZcQ7LMFYHBsyMTMTJLoidnRuidHO9vvCTHOnysQ Validated: RRSIG-Owner alfa-system.pl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	RRSIG Type 28 validates the AAAA - Result: 2A0F:1700:0001:0000:0000:0000:0000:0501 Validated: RRSIG-Owner alfa-system.pl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	RRSIG Type 28 validates the AAAA - Result: 2A0F:1700:0001:0000:0000:0000:0000:0501 Validated: RRSIG-Owner alfa-system.pl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	RRSIG Type 52 validates the TLSA - Result (_443._tcp.alfa-system.pl): _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector: 1 (SPKI, SubjectPublicKeyInfo), Matching: 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb Validated: RRSIG-Owner _443._tcp.alfa-system.pl., Algorithm: 13, 4 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	RRSIG Type 52 validates the TLSA - Result (_443._tcp.alfa-system.pl): _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector: 1 (SPKI, SubjectPublicKeyInfo), Matching: 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb Validated: RRSIG-Owner _443._tcp.alfa-system.pl., Algorithm: 13, 4 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	RRSIG Type 257 validates the CAA - Result: 5\|iodefmailto:admin@alfa-system.pl 5\|issuecertum.pl 5\|issueletsencrypt.org Validated: RRSIG-Owner alfa-system.pl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	RRSIG Type 257 validates the CAA - Result: 5\|iodefmailto:admin@alfa-system.pl 5\|issuecertum.pl 5\|issueletsencrypt.org Validated: RRSIG-Owner alfa-system.pl., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	RRSIG Type 1 validates the A - Result: 91.231.70.31 Validated: RRSIG-Owner alfa-system.pl., Algorithm: 7, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 31979, Signer-Name: alfa-system.pl


	RRSIG Type 1 validates the A - Result: 91.231.70.31 Validated: RRSIG-Owner alfa-system.pl., Algorithm: 7, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 31979, Signer-Name: alfa-system.pl


	RRSIG Type 16 validates the TXT - Result: security_contact=mailto:admin@alfa-system.pl v=spf1 mx ip4:91.231.70.0/26 ip6:2a0f:1700:1::400/120 ~all mojecertpl-site-verification-iQVFUyLrUpdnvZyiaq6zMHQX5j2LOwa3 a9cce21c94f6df8f022e7574f3dc34522d17786f379e3a065d5dd0eb75048a5 yahoo-verification-key=BWghRcJbevVm89twByyDUQTZGFOvnHXwRlHE+CPkUn4= google-site-verification=GuuCVq6tlB8bSvSVE0MpGp01qENHXzU-G-f7eRNsoHE google-site-verification=fiQgZcQ7LMFYHBsyMTMTJLoidnRuidHO9vvCTHOnysQ Validated: RRSIG-Owner alfa-system.pl., Algorithm: 7, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 31979, Signer-Name: alfa-system.pl


	RRSIG Type 16 validates the TXT - Result: security_contact=mailto:admin@alfa-system.pl v=spf1 mx ip4:91.231.70.0/26 ip6:2a0f:1700:1::400/120 ~all mojecertpl-site-verification-iQVFUyLrUpdnvZyiaq6zMHQX5j2LOwa3 a9cce21c94f6df8f022e7574f3dc34522d17786f379e3a065d5dd0eb75048a5 yahoo-verification-key=BWghRcJbevVm89twByyDUQTZGFOvnHXwRlHE+CPkUn4= google-site-verification=GuuCVq6tlB8bSvSVE0MpGp01qENHXzU-G-f7eRNsoHE google-site-verification=fiQgZcQ7LMFYHBsyMTMTJLoidnRuidHO9vvCTHOnysQ Validated: RRSIG-Owner alfa-system.pl., Algorithm: 7, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 31979, Signer-Name: alfa-system.pl


	RRSIG Type 28 validates the AAAA - Result: 2A0F:1700:0001:0000:0000:0000:0000:0501 Validated: RRSIG-Owner alfa-system.pl., Algorithm: 7, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 31979, Signer-Name: alfa-system.pl


	RRSIG Type 28 validates the AAAA - Result: 2A0F:1700:0001:0000:0000:0000:0000:0501 Validated: RRSIG-Owner alfa-system.pl., Algorithm: 7, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 31979, Signer-Name: alfa-system.pl


	RRSIG Type 52 validates the TLSA - Result (_443._tcp.alfa-system.pl): _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector: 1 (SPKI, SubjectPublicKeyInfo), Matching: 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb Validated: RRSIG-Owner _443._tcp.alfa-system.pl., Algorithm: 7, 4 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 31979, Signer-Name: alfa-system.pl


	RRSIG Type 52 validates the TLSA - Result (_443._tcp.alfa-system.pl): _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector: 1 (SPKI, SubjectPublicKeyInfo), Matching: 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb Validated: RRSIG-Owner _443._tcp.alfa-system.pl., Algorithm: 7, 4 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 31979, Signer-Name: alfa-system.pl


	RRSIG Type 257 validates the CAA - Result: 5\|iodefmailto:admin@alfa-system.pl 5\|issuecertum.pl 5\|issueletsencrypt.org Validated: RRSIG-Owner alfa-system.pl., Algorithm: 7, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 31979, Signer-Name: alfa-system.pl


	RRSIG Type 257 validates the CAA - Result: 5\|iodefmailto:admin@alfa-system.pl 5\|issuecertum.pl 5\|issueletsencrypt.org Validated: RRSIG-Owner alfa-system.pl., Algorithm: 7, 2 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 31979, Signer-Name: alfa-system.pl


	CNAME-Query sends a valid NSEC3 RR as result with the hashed query name "qok6vkpnrj2qkmj0tt5fhopmo6oe5rbn" equal the hashed NSEC3-owner "qok6vkpnrj2qkmj0tt5fhopmo6oe5rbn" and the hashed NextOwner "qqdgiuntneu36c567ibd6cfh4elpta8f". So the zone confirmes the not-existence of that CNAME RR, but the existence of that query name (minimal one RR with that name exists). Bitmap: A, NS, SOA, MX, TXT, AAAA, RRSIG, DNSKEY, NSEC3PARAM, CAA Validated: RRSIG-Owner qok6vkpnrj2qkmj0tt5fhopmo6oe5rbn.alfa-system.pl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	Status: Good. NoData-Proof required and found.

Zone: www.alfa-system.pl
www.alfa-system.pl	0 DS RR in the parent zone found


	DS-Query in the parent zone sends valid NSEC3 RR with the Hash "qok6vkpnrj2qkmj0tt5fhopmo6oe5rbn" as Owner. That's the Hash of "alfa-system.pl" with the NextHashedOwnerName "qqdgiuntneu36c567ibd6cfh4elpta8f". So that domain name is the Closest Encloser of "www.alfa-system.pl". Opt-Out: True. Bitmap: A, NS, SOA, MX, TXT, AAAA, RRSIG, DNSKEY, NSEC3PARAM, CAA Validated: RRSIG-Owner qok6vkpnrj2qkmj0tt5fhopmo6oe5rbn.alfa-system.pl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	DS-Query in the parent zone sends valid NSEC3 RR with the Hash "qok6vkpnrj2qkmj0tt5fhopmo6oe5rbn" as Owner. That's the Hash of "alfa-system.pl" with the NextHashedOwnerName "qqdgiuntneu36c567ibd6cfh4elpta8f". So that domain name is the Closest Encloser of "www.alfa-system.pl". Opt-Out: True. Bitmap: A, NS, SOA, MX, TXT, AAAA, RRSIG, DNSKEY, NSEC3PARAM, CAA Validated: RRSIG-Owner qok6vkpnrj2qkmj0tt5fhopmo6oe5rbn.alfa-system.pl., Algorithm: 7, 3 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 31979, Signer-Name: alfa-system.pl


	RRSIG Type 5 validates the CNAME - Result: alfa-system.pl Validated: RRSIG-Owner www.alfa-system.pl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	RRSIG Type 5 validates the CNAME - Result: alfa-system.pl Validated: RRSIG-Owner www.alfa-system.pl., Algorithm: 13, 3 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 24338, Signer-Name: alfa-system.pl


	RRSIG Type 5 validates the CNAME - Result: alfa-system.pl Validated: RRSIG-Owner www.alfa-system.pl., Algorithm: 7, 3 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 31979, Signer-Name: alfa-system.pl


	RRSIG Type 5 validates the CNAME - Result: alfa-system.pl Validated: RRSIG-Owner www.alfa-system.pl., Algorithm: 7, 3 Labels, original TTL: 3600 sec, Signature-expiration: 31.12.2026, 00:00:00 +, Signature-Inception: 02.10.2026, 06:59:18 +, KeyTag 31979, Signer-Name: alfa-system.pl

3. Name Servers

Domain	Nameserver	NS-IP
alfa-system.pl	• dns.alfa-system.pl	91.231.70.37 Knurów/Silesia/Poland (PL) - Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j	•
	•	2a0f:1700:1::452 Knurów/Silesia/Poland (PL) - Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j	•
	• dns2.alfa-system.pl	91.231.70.58 Knurów/Silesia/Poland (PL) - Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j	•
	•	2a0f:1700:1::454 Knurów/Silesia/Poland (PL) - Marek Piwowarski trading as ALFA-SYSTEM M. Piwowarski, A. Widera s.j	•
pl	• a-dns.pl / a-atm		•
	• b-dns.pl / b-nask		•
	• d-dns.pl / LHR4		•
	• f-dns.pl / tld-all-ffm1@53029		•
	• h-dns.pl / FRA1		•
	X j-dns.pl / 4.fra.pch

4. SOA-Entries

Domain:	pl
Zone-Name:	pl
Primary:	a-dns.pl
Mail:	dnsmaster.nask.pl
Serial:	1790922792
Refresh:	900
Retry:	300
Expire:	2592000
TTL:	3600
num Entries:	6

Domain:	alfa-system.pl
Zone-Name:	alfa-system.pl
Primary:	dns.alfa-system.pl
Mail:	admin.alfa-system.pl
Serial:	2026100204
Refresh:	14400
Retry:	3600
Expire:	1209600
TTL:	43200
num Entries:	4

5. Screenshots

Startaddress: https://alfa-system.pl/, address used: https://alfa-system.pl/, Screenshot created 2026-10-02 22:45:34 +00:0

Mobil (412px x 732px)

890 milliseconds

Screenshot mobile - https://alfa-system.pl/

Mobil + Landscape (732px x 412px)

828 milliseconds

Screenshot mobile landscape - https://alfa-system.pl/

Screen (1280px x 1680px)

1083 milliseconds

Screenshot Desktop - https://alfa-system.pl/

Mobile- and other Chrome-Checks

	width	height
visual Viewport	397	732
content Size	794	2514

Fatal: Horizontal scrollbar detected. Content-size width is greater then visual Viewport width.

6. Url-Checks

show header:

Domainname	Http-Status	redirect	Sec.	G
• http://alfa-system.pl/ 91.231.70.31	308	https://alfa-system.pl/	0.046	A
Connection: close
Location: https://alfa-system.pl/
Server: Caddy
Date: Fri, 02 Oct 2026 20:41:45 GMT
Content-Length: 0

• http://alfa-system.pl/ 2a0f:1700:1::501	308	https://alfa-system.pl/	0.043	A
Connection: close
Location: https://alfa-system.pl/
Server: Caddy
Date: Fri, 02 Oct 2026 20:41:45 GMT
Content-Length: 0

• http://www.alfa-system.pl/ 91.231.70.31	308	https://www.alfa-system.pl/	0.057	A
Connection: close
Location: https://www.alfa-system.pl/
Server: Caddy
Date: Fri, 02 Oct 2026 20:41:45 GMT
Content-Length: 0

• http://www.alfa-system.pl/ 2a0f:1700:1::501	308	https://www.alfa-system.pl/	0.046	A
Connection: close
Location: https://www.alfa-system.pl/
Server: Caddy
Date: Fri, 02 Oct 2026 20:41:45 GMT
Content-Length: 0

• https://www.alfa-system.pl/ 91.231.70.31	301	https://alfa-system.pl/	2.220	B
Alt-Svc: h3=":443"; ma=2592000
Location: https://alfa-system.pl/
Server: Caddy
Date: Fri, 02 Oct 2026 20:41:55 GMT
Content-Length: 0

• https://www.alfa-system.pl/ 2a0f:1700:1::501	301	https://alfa-system.pl/	2.120	B
Alt-Svc: h3=":443"; ma=2592000
Location: https://alfa-system.pl/
Server: Caddy
Date: Fri, 02 Oct 2026 20:41:58 GMT
Content-Length: 0

• https://alfa-system.pl/ 91.231.70.31 gzip used - 9156 / 49439 - 81.48 % Inline-JavaScript (∑/total): 4/4718 Inline-CSS (∑/total): 1/310	200	Html is minified: 165.52 % Other inline scripts (∑/total): 1/735	2.290	I
Alt-Svc: h3=":443"; ma=2592000
Cache-Control: no-store, no-cache, max-age=0
Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' https://matomo.alfa-system.net; style-src 'self' 'unsafe-inline'; img-src 'self' data: https://www.jambox.pl https://matomo.alfa-system.net; font-src 'self' data:; connect-src 'self' https://matomo.alfa-system.net; object-src 'none'; frame-src https://www.google.com; base-uri 'self'; frame-ancestors 'self';
Cross-Origin-Opener-Policy: same-origin
Cross-Origin-Resource-Policy: same-origin
Date: Fri, 02 Oct 2026 20:41:45 GMT
Link: </llms.txt>; rel="llms-txt", </sitemap.xml>; rel="sitemap", </.well-known/api-catalog>; rel="api-catalog"
Permissions-Policy: geolocation=(), microphone=(), camera=(), payment=()
Referrer-Policy: strict-origin-when-cross-origin
Server: nginx
Set-Cookie: csrf_cookie_name=282ea4675328803176c15567a4904bc4; expires=Fri, 02 Oct 2026 22:41:45 GMT; Max-Age=7200; path=/; secure; HttpOnly; SameSite=Lax
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
Vary: Accept-Encoding
Via: 1.1 Caddy
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-Permitted-Cross-Domain-Policies: none
Transfer-Encoding: chunked
Content-Encoding: gzip
Content-Type: text/html; charset=UTF-8
Content-Length: 9156

• https://alfa-system.pl/ 2a0f:1700:1::501 gzip used - 9156 / 49439 - 81.48 % Inline-JavaScript (∑/total): 4/4718 Inline-CSS (∑/total): 1/310	200	Html is minified: 165.52 % Other inline scripts (∑/total): 1/735	2.147	I
Alt-Svc: h3=":443"; ma=2592000
Cache-Control: no-store, no-cache, max-age=0
Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' https://matomo.alfa-system.net; style-src 'self' 'unsafe-inline'; img-src 'self' data: https://www.jambox.pl https://matomo.alfa-system.net; font-src 'self' data:; connect-src 'self' https://matomo.alfa-system.net; object-src 'none'; frame-src https://www.google.com; base-uri 'self'; frame-ancestors 'self';
Cross-Origin-Opener-Policy: same-origin
Cross-Origin-Resource-Policy: same-origin
Date: Fri, 02 Oct 2026 20:41:50 GMT
Link: </llms.txt>; rel="llms-txt", </sitemap.xml>; rel="sitemap", </.well-known/api-catalog>; rel="api-catalog"
Permissions-Policy: geolocation=(), microphone=(), camera=(), payment=()
Referrer-Policy: strict-origin-when-cross-origin
Server: nginx
Set-Cookie: csrf_cookie_name=b696093715ce35c35cf49889285444e2; expires=Fri, 02 Oct 2026 22:41:50 GMT; Max-Age=7200; path=/; secure; HttpOnly; SameSite=Lax
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
Vary: Accept-Encoding
Via: 1.1 Caddy
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-Permitted-Cross-Domain-Policies: none
Transfer-Encoding: chunked
Content-Encoding: gzip
Content-Type: text/html; charset=UTF-8
Content-Length: 9156

• https://mta-sts.alfa-system.pl/.well-known/mta-sts.txt 91.231.70.31	200			A
0 None CN=mta-sts.alfa-system.pl
Accept-Ranges: bytes
Alt-Svc: h3=":443"; ma=2592000
Date: Fri, 02 Oct 2026 20:42:39 GMT
ETag: "68be9936-61"
Permissions-Policy: geolocation=(), microphone=(), camera=(), payment=()
Referrer-Policy: no-referrer-when-downgrade
Server: nginx
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
Via: 1.1 Caddy
X-Content-Type-Options: nosniff
Content-Length: 97
Content-Type: text/plain
Last-Modified: Mon, 08 Sep 2025 08:52:06 GMT

• https://mta-sts.alfa-system.pl/.well-known/mta-sts.txt 2a0f:1700:1::501	200			A
0 None CN=mta-sts.alfa-system.pl
Accept-Ranges: bytes
Alt-Svc: h3=":443"; ma=2592000
Date: Fri, 02 Oct 2026 20:43:14 GMT
ETag: "68be9936-61"
Permissions-Policy: geolocation=(), microphone=(), camera=(), payment=()
Referrer-Policy: no-referrer-when-downgrade
Server: nginx
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
Via: 1.1 Caddy
X-Content-Type-Options: nosniff
Content-Length: 97
Content-Type: text/plain
Last-Modified: Mon, 08 Sep 2025 08:52:06 GMT

• http://alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 91.231.70.31	308	https://alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de	0.030	A
Visible Content:
Connection: close
Location: https://alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Server: Caddy
Date: Fri, 02 Oct 2026 20:42:01 GMT
Content-Length: 0

• http://alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a0f:1700:1::501	308	https://alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de	0.043	A
Visible Content:
Connection: close
Location: https://alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Server: Caddy
Date: Fri, 02 Oct 2026 20:42:03 GMT
Content-Length: 0

• http://www.alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 91.231.70.31	308	https://www.alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de	0.050	A
Visible Content:
Connection: close
Location: https://www.alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Server: Caddy
Date: Fri, 02 Oct 2026 20:42:04 GMT
Content-Length: 0

• http://www.alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a0f:1700:1::501	308	https://www.alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de	0.037	A
Visible Content:
Connection: close
Location: https://www.alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Server: Caddy
Date: Fri, 02 Oct 2026 20:42:05 GMT
Content-Length: 0

• https://www.alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de	301	https://alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de	7.043	A
Visible Content:
Alt-Svc: h3=":443"; ma=2592000
Location: https://alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Server: Caddy
Date: Fri, 02 Oct 2026 20:42:11 GMT
Content-Length: 0

• https://alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de	404		2.137	A
Not Found
Visible Content:
Alt-Svc: h3=":443"; ma=2592000
Cache-Control: no-store, no-cache, max-age=0
Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' https://matomo.alfa-system.net; style-src 'self' 'unsafe-inline'; img-src 'self' data: https://www.jambox.pl https://matomo.alfa-system.net; font-src 'self' data:; connect-src 'self' https://matomo.alfa-system.net; object-src 'none'; frame-src https://www.google.com; base-uri 'self'; frame-ancestors 'self';
Cross-Origin-Opener-Policy: same-origin
Cross-Origin-Resource-Policy: same-origin
Date: Fri, 02 Oct 2026 20:42:07 GMT
Permissions-Policy: geolocation=(), microphone=(), camera=(), payment=()
Referrer-Policy: strict-origin-when-cross-origin
Server: nginx
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
Via: 1.1 Caddy
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
X-Permitted-Cross-Domain-Policies: none
Content-Type: text/html; charset=UTF-8
Content-Length: 0

• https://91.231.70.31/ 91.231.70.31	-103		0.053	P
SecureConnectionError (3, 0x80131501). The SSL connection could not be established, see inner exception. Authentication failed because the remote party sent a TLS alert: 'InternalError' (FF: SSL_ERROR_INTERNAL_ERROR_ALERT)

• https://[2a0f:1700:0001:0000:0000:0000:0000:0501]/ 2a0f:1700:1::501	-103		0.046	P
SecureConnectionError (3, 0x80131501). The SSL connection could not be established, see inner exception. Authentication failed because the remote party sent a TLS alert: 'InternalError' (FF: SSL_ERROR_INTERNAL_ERROR_ALERT)

7. Comments

	1. General Results, most used to calculate the result
A	name "alfa-system.pl" is domain, public suffix is ".pl", top-level-domain is ".pl", top-level-domain-type is "country-code", Country is Poland, tld-manager is "Research and Academic Computer Network", num .pl-domains preloaded: 2145 (complete: 276475)
A	Good: All ip addresses are public addresses
A	Good: Minimal 2 ip addresses per domain name found: alfa-system.pl has 2 different ip addresses (authoritative).
A	Good: Minimal 2 ip addresses per domain name found: www.alfa-system.pl has 2 different ip addresses (authoritative).
A	Good: Ipv4 and Ipv6 addresses per domain name found: alfa-system.pl has 1 ipv4, 1 ipv6 addresses
A	Good: Ipv4 and Ipv6 addresses per domain name found: www.alfa-system.pl has 1 ipv4, 1 ipv6 addresses
A	Good: No asked Authoritative Name Server had a timeout
A	https://alfa-system.pl/ 91.231.70.31			Good: Valid DANE - entry found: signed Data _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb confirms the Certificate with the same value
A	https://alfa-system.pl/ 91.231.70.31			Good: Valid DANE - entry found: signed Data _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb confirms the Certificate with the same value
A	https://alfa-system.pl/ 2a0f:1700:1::501			Good: Valid DANE - entry found: signed Data _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb confirms the Certificate with the same value
A	https://alfa-system.pl/ 2a0f:1700:1::501			Good: Valid DANE - entry found: signed Data _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb confirms the Certificate with the same value
A	https://alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de			Good: Valid DANE - entry found: signed Data _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb confirms the Certificate with the same value
A	https://alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de			Good: Valid DANE - entry found: signed Data _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb confirms the Certificate with the same value
A	https://91.231.70.31/ 91.231.70.31			Good: Valid DANE - entry found: signed Data _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb confirms the Certificate with the same value
A	https://91.231.70.31/ 91.231.70.31			Good: Valid DANE - entry found: signed Data _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb confirms the Certificate with the same value
A	https://[2a0f:1700:0001:0000:0000:0000:0000:0501]/ 2a0f:1700:1::501			Good: Valid DANE - entry found: signed Data _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb confirms the Certificate with the same value
A	https://[2a0f:1700:0001:0000:0000:0000:0000:0501]/ 2a0f:1700:1::501			Good: Valid DANE - entry found: signed Data _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb confirms the Certificate with the same value
A	https://mta-sts.alfa-system.pl/.well-known/mta-sts.txt 91.231.70.31			Good: Valid DANE - entry found: signed Data _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb confirms the Certificate with the same value
A	https://mta-sts.alfa-system.pl/.well-known/mta-sts.txt 91.231.70.31			Good: Valid DANE - entry found: signed Data _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb confirms the Certificate with the same value
A	https://mta-sts.alfa-system.pl/.well-known/mta-sts.txt 2a0f:1700:1::501			Good: Valid DANE - entry found: signed Data _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb confirms the Certificate with the same value
A	https://mta-sts.alfa-system.pl/.well-known/mta-sts.txt 2a0f:1700:1::501			Good: Valid DANE - entry found: signed Data _443._tcp.alfa-system.pl: CertUsage 3 (DANE-EE, Domain-issued certificate), Selector 1 (SPKI, SubjectPublicKeyInfo), Matching 1 (SHA2-256, 256 bit hash by SHA2), CertificateAssociationData: 72c707be1d0574dc8431f9e430fea8f2b588250dc06ffe50ba73ebdaa719affb confirms the Certificate with the same value
A	Good: destination is https
A	Good - only one version with Http-Status 200
A	Good: one preferred version: non-www is preferred
A	Good: No cookie sent via http.
A	Good: every cookie sent via https is marked as secure
A	Good: Every cookie has a SameSite Attribute with a correct value Strict/Lax/None
	Warning: HSTS preload sent, but not in Preload-List. Never send a preload directive if you don't know what preload means. Check https://hstspreload.org/ to learn the basics about the Google-Preload list. If you send a preload directive, you should immediately add your domain to the HSTS preload list via https://hstspreload.org/ . If Google accepts the domain, so the status is "pending": Note that new entries are hardcoded into the Chrome source code and can take several months before they reach the stable version. So you will see this message some months. If you don't want that or if you don't understand "preload", but if you send a preload directive and if you have correct A-redirects, everybody can add your domain to that list. Then you may have problems, it's not easy to undo that. So if you don't want your domain preloaded, remove the preload directive.
	HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
A	Good: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):3 complete Content-Type - header (5 urls)
	https://mta-sts.alfa-system.pl/.well-known/mta-sts.txt 91.231.70.31			Url with incomplete Content-Type - header - missing charset
	https://mta-sts.alfa-system.pl/.well-known/mta-sts.txt 2a0f:1700:1::501			Url with incomplete Content-Type - header - missing charset
A	http://alfa-system.pl/ 91.231.70.31	308	https://alfa-system.pl/	Correct redirect http - https with the same domain name
A	http://alfa-system.pl/ 2a0f:1700:1::501	308	https://alfa-system.pl/	Correct redirect http - https with the same domain name
A	http://www.alfa-system.pl/ 91.231.70.31	308	https://www.alfa-system.pl/	Correct redirect http - https with the same domain name
A	http://www.alfa-system.pl/ 2a0f:1700:1::501	308	https://www.alfa-system.pl/	Correct redirect http - https with the same domain name
B	https://www.alfa-system.pl/ 91.231.70.31	301		Missing HSTS-Header
B	https://www.alfa-system.pl/ 2a0f:1700:1::501	301		Missing HSTS-Header
B	https://www.alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de	301		Missing HSTS-Header
I	https://alfa-system.pl/ 91.231.70.31	200		Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
I	https://alfa-system.pl/ 2a0f:1700:1::501	200		Content problems or problems with resources included - http links, files doesn't exist, different Content-Type definitions. Check the Html-Content - Part.
X	Fatal error: Nameserver doesn't support TCP connection: j-dns.pl: Fatal error (-14). Details: Unable to read data from the transport connection: Eine vorhandene Verbindung wurde vom Remotehost geschlossen.. - Eine vorhandene Verbindung wurde vom Remotehost geschlossen.
A	Good: More then one ip address per domain name found, checking all ip addresses the same http status and the same certificate found: Domain alfa-system.pl, 2 ip addresses.
A	Good: More then one ip address per domain name found, checking all ip addresses the same http status and the same certificate found: Domain www.alfa-system.pl, 2 ip addresses.
	Info: Checking the ip addresses of that domain name not exact one certificate found. So it's impossible to check if that domain requires Server Name Indication (SNI).: Domain alfa-system.pl, 2 ip addresses.
	Info: Checking the ip addresses of that domain name not exact one certificate found. So it's impossible to check if that domain requires Server Name Indication (SNI).: Domain www.alfa-system.pl, 2 ip addresses.
A	Good: _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Domainname: _mta-sts.alfa-system.pl
A	Good: _mta-sts TXT record is valid.
A	Good: Subdomain mta-sts found: Subdomain-name: mta-sts.alfa-system.pl, ip : 91.231.70.31
A	Good: Subdomain mta-sts found: Subdomain-name: mta-sts.alfa-system.pl, ip : 2a0f:1700:1::501
A	Good: Certificate of subdomain is valid. mta-sts.alfa-system.pl, ip : 91.231.70.31
A	Good: Certificate of subdomain is valid. mta-sts.alfa-system.pl, ip : 2a0f:1700:1::501
A	Good: /.well-known/mta-sts.txt with http status 200 found. Complete path: https://mta-sts.alfa-system.pl/.well-known/mta-sts.txt - ip : 91.231.70.31
A	Good: /.well-known/mta-sts.txt with http status 200 found. Complete path: https://mta-sts.alfa-system.pl/.well-known/mta-sts.txt - ip : 2a0f:1700:1::501
A	Good: mta-sts.txt has the required names "version", "mode", "max_age". mta-sts.alfa-system.pl, ip : 2a0f:1700:1::501
A	Good: mta-sts.txt has the required names "version", "mode", "max_age". mta-sts.alfa-system.pl, ip : 91.231.70.31
A	Good: Minimal one mx definition found. mta-sts.alfa-system.pl, ip : 2a0f:1700:1::501
A	Good: Minimal one mx definition found. mta-sts.alfa-system.pl, ip : 91.231.70.31
A	Excellent: Complete and valid MTA-STS found!
	2. Header-Checks
A	alfa-system.pl 91.231.70.31	Content-Security-Policy		Ok: Header without syntax errors found: default-src 'self'; script-src 'self' 'unsafe-inline' https://matomo.alfa-system.net; style-src 'self' 'unsafe-inline'; img-src 'self' data: https://www.jambox.pl https://matomo.alfa-system.net; font-src 'self' data:; connect-src 'self' https://matomo.alfa-system.net; object-src 'none'; frame-src https://www.google.com; base-uri 'self'; frame-ancestors 'self';
A				Good: default-src directive only with 'none' or 'self', additional sources are blocked.
A				Good: default-src without 'unsafe-inline' or 'unsave-eval'.
E				Bad: No form-action directive found. Use one to limit the form - action - destinations. form-action is a navigation-directive, so default-src isn't used.
A				Good: frame-ancestors directive found. That limits pages who are allowed to use this page in a frame / iframe / object / embed / applet. frame-ancestors is a navigation-directive, so default-src isn't used.
A				Good: base-uri directive found. That limits the URLs which can be used in a document's <base> element. Because it's a document directive, default-src isn't used, so an own directive is required.
A				Good: object-src only with 'none' or 'self' found, no scheme, no other urls. That blocks object / embed / applet - elements.
F				Critical: script-src with 'unsafe-inline' or 'unsafe-eval' and without a nonce found. That's dangerous, don't use it. If you really need one of these unsafe directives, add a nonce.
A				Good: script-src without * and a scheme found.
A				Good: script-src without data: schema found. Why is this important? The data: schema allows hidden code injection. Insert <script src='data:application/javascript;base64,YWxlcnQoJ1hTUycpOw=='></script> in your page and see what happens.
A				Good: frame-src without data: defined or frame-src missing and the default-src used as fallback not allows the data: schema. That blocks hidden code injection. Insert <iframe src="data:text/html;charset=utf-8;base64,PCFET0NUWVBFIGh0bWw+PGh0bWw+PGJvZHk+PHA+YmVmb3JlPHNjcmlwdCB0eXBlPSJ0ZXh0L2phdmFzY3JpcHQiPmFsZXJ0KCdYU1MnKTwvc2NyaXB0PjxwPmFmdGVyPC9ib2R5PjwvaHRtbD4="></iframe> in your page and see what happens.
A		X-Content-Type-Options		Ok: Header without syntax errors found: nosniff
A		Referrer-Policy		Ok: Header without syntax errors found: strict-origin-when-cross-origin
A		Permissions-Policy		Ok: Header without syntax errors found: geolocation=(), microphone=(), camera=(), payment=()
A		X-Frame-Options		Ok: Header without syntax errors found: SAMEORIGIN
B				Info: Header is deprecated. May not longer work in modern browsers. SAMEORIGIN. Better solution: Use a Content-Security-Policy Header with a frame-ancestors directive. DENY - use 'none', SAMEORIGIN - use 'self'. If you want to allow some domains to frame your page, add these urls.
A		Cross-Origin-Opener-Policy		Ok: Header without syntax errors found: same-origin
A		Cross-Origin-Resource-Policy		Ok: Header without syntax errors found: same-origin
A	alfa-system.pl 2a0f:1700:1::501	Content-Security-Policy		Ok: Header without syntax errors found: default-src 'self'; script-src 'self' 'unsafe-inline' https://matomo.alfa-system.net; style-src 'self' 'unsafe-inline'; img-src 'self' data: https://www.jambox.pl https://matomo.alfa-system.net; font-src 'self' data:; connect-src 'self' https://matomo.alfa-system.net; object-src 'none'; frame-src https://www.google.com; base-uri 'self'; frame-ancestors 'self';
A				Good: default-src directive only with 'none' or 'self', additional sources are blocked.
A				Good: default-src without 'unsafe-inline' or 'unsave-eval'.
E				Bad: No form-action directive found. Use one to limit the form - action - destinations. form-action is a navigation-directive, so default-src isn't used.
A				Good: frame-ancestors directive found. That limits pages who are allowed to use this page in a frame / iframe / object / embed / applet. frame-ancestors is a navigation-directive, so default-src isn't used.
A				Good: base-uri directive found. That limits the URLs which can be used in a document's <base> element. Because it's a document directive, default-src isn't used, so an own directive is required.
A				Good: object-src only with 'none' or 'self' found, no scheme, no other urls. That blocks object / embed / applet - elements.
F				Critical: script-src with 'unsafe-inline' or 'unsafe-eval' and without a nonce found. That's dangerous, don't use it. If you really need one of these unsafe directives, add a nonce.
A				Good: script-src without * and a scheme found.
A				Good: script-src without data: schema found. Why is this important? The data: schema allows hidden code injection. Insert <script src='data:application/javascript;base64,YWxlcnQoJ1hTUycpOw=='></script> in your page and see what happens.
A				Good: frame-src without data: defined or frame-src missing and the default-src used as fallback not allows the data: schema. That blocks hidden code injection. Insert <iframe src="data:text/html;charset=utf-8;base64,PCFET0NUWVBFIGh0bWw+PGh0bWw+PGJvZHk+PHA+YmVmb3JlPHNjcmlwdCB0eXBlPSJ0ZXh0L2phdmFzY3JpcHQiPmFsZXJ0KCdYU1MnKTwvc2NyaXB0PjxwPmFmdGVyPC9ib2R5PjwvaHRtbD4="></iframe> in your page and see what happens.
A		X-Content-Type-Options		Ok: Header without syntax errors found: nosniff
A		Referrer-Policy		Ok: Header without syntax errors found: strict-origin-when-cross-origin
A		Permissions-Policy		Ok: Header without syntax errors found: geolocation=(), microphone=(), camera=(), payment=()
A		X-Frame-Options		Ok: Header without syntax errors found: SAMEORIGIN
B				Info: Header is deprecated. May not longer work in modern browsers. SAMEORIGIN. Better solution: Use a Content-Security-Policy Header with a frame-ancestors directive. DENY - use 'none', SAMEORIGIN - use 'self'. If you want to allow some domains to frame your page, add these urls.
A		Cross-Origin-Opener-Policy		Ok: Header without syntax errors found: same-origin
A		Cross-Origin-Resource-Policy		Ok: Header without syntax errors found: same-origin
B	alfa-system.pl 91.231.70.31	Cross-Origin-Embedder-Policy		Info: Missing Header
B	alfa-system.pl 2a0f:1700:1::501	Cross-Origin-Embedder-Policy		Info: Missing Header
	3. DNS- and NameServer - Checks
A	Info:: 2 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
A	Info:: 2 Queries complete, 2 with IPv6, 0 with IPv4.
A	Good: All DNS Queries done via IPv6.
A	Good: Some ip addresses of name servers found with the minimum of two DNS Queries. One to find the TLD-Zone, one to ask the TLD-Zone.dns.alfa-system.pl (2a0f:1700:1::452, 91.231.70.37), dns2.alfa-system.pl (2a0f:1700:1::454, 91.231.70.58)
A	Good (1 - 3.0):: An average of 1.0 queries per domain name server required to find all ip addresses of all name servers.
A	Info:: 2 different Name Servers found: dns.alfa-system.pl, dns2.alfa-system.pl, 2 Name Servers included in Delegation: dns.alfa-system.pl, dns2.alfa-system.pl, 2 Name Servers included in 1 Zone definitions: dns.alfa-system.pl, dns2.alfa-system.pl, 1 Name Servers listed in SOA.Primary: dns.alfa-system.pl.
A	Good: Only one SOA.Primary Name Server found.: dns.alfa-system.pl.
A	Good: SOA.Primary Name Server included in the delegation set.: dns.alfa-system.pl.
A	Good: Consistency between delegation and zone. The set of NS records served by the authoritative name servers must match those proposed for the delegation in the parent zone. Ordered list of name servers: dns.alfa-system.pl, dns2.alfa-system.pl
A	Good: All Name Server Domain Names have a Public Suffix.
A	Good: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
A	Good: All Name Server ip addresses are public.
A	Good: Minimal 2 different name servers (public suffix and public ip address) found: 2 different Name Servers found
A	Good: All name servers have ipv4- and ipv6-addresses.: 2 different Name Servers found
	Warning: All Name Servers have the same Top Level Domain / Public Suffix. If there is a problem with that Top Level Domain, your domain may be affected. Better: Use Name Servers with different top level domains.: 2 Name Servers, 1 Top Level Domain: pl
	Warning: All Name Servers have the same domain name. If there is a problem with that domain name (or with the name servers of that domain name), your domain may be affected. Better: Use Name Servers with different domain names / different top level domains.: Only one domain name used: alfa-system.pl
	Warning: All Name Servers from the same Country / IP location.: 2 Name Servers, 1 Countries: PL
A	Info: Ipv4-Subnet-list: 2 Name Servers, 1 different subnets (first Byte): 91., 1 different subnets (first two Bytes): 91.231., 1 different subnets (first three Bytes): 91.231.70.
X	Fatal: All Name Server IPv4 addresses from the same subnet. Check https://www.iana.org/help/nameserver-requirements to learn some basics about name server configurations. If you manage these name servers, fix it. If it's your provider, change your provider.:
A	Info: IPv6-Subnet-list: 2 Name Servers with IPv6, 1 different subnets (first block): 2a0f:, 1 different subnets (first two blocks): 2a0f:1700:, 1 different subnets (first three blocks): 2a0f:1700:0001:, 1 different subnets (first four blocks): 2a0f:1700:0001:0000:
	Fatal: All Name Server IPv6 addresses from the same subnet.
A	Good: Nameserver supports TCP connections: 4 good Nameserver
A	Good: Nameserver supports Echo Capitalization: 4 good Nameserver
A	Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 4 good Nameserver
A	Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 4 good Nameserver
A	Good: All SOA have the same Serial Number
A	Good: CAA entries found, creating certificate is limited: certum.pl is allowed to create certificates
A	Good: CAA entries found, creating certificate is limited: letsencrypt.org is allowed to create certificates
	4. Content- and Performance-critical Checks
A	Good: All checks /.well-known/acme-challenge/random-filename without redirects answer with the expected http status 404 - Not Found. Creating a Letsencrypt certificate via http-01 challenge should work. If it doesn't work: Check your vHost configuration (apachectl -S, httpd -S, nginx -T). Every combination of port and ServerName / ServerAlias (Apache) or Server (Nginx) must be unique. Merge duplicated entries in one vHost. If you use an IIS, extensionless files must be allowed in the /.well-known/acme-challenge subdirectory. Create a web.config in that directory. Content: <configuration><system.webServer><staticContent><mimeMap fileExtension="." mimeType="text/plain" /></staticContent></system.webServer></configuration>. If you have a redirect http ⇒ https, that's ok, Letsencrypt follows such redirects to port 80 / 443 (same or other server). There must be a certificate. But the certificate may be expired, self signed or with a not matching domain name. Checking the validation file Letsencrypt ignores such certificate errors. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
A	Good: Every https result with status 200 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
	https://alfa-system.pl/ 91.231.70.31	200		Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
	https://alfa-system.pl/ 2a0f:1700:1::501	200		Warning: Https + http status 200 + Inline CSS / JavaScript found. Don't use inline CSS / JavaScript. These are compiled and re-used ressources, save these with a long Cache-Control max-age - header.
	https://alfa-system.pl/ 91.231.70.31	200		Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
	https://alfa-system.pl/ 2a0f:1700:1::501	200		Warning: Https result with status 200 found, Html-Content is too big. Should be max. 110 %. May contain inline CSS / JavaScript, too much comments or white space. Re-used ressources - create files with a long Cache-Control max-age header. Remove comments and white space.
	https://mta-sts.alfa-system.pl/.well-known/mta-sts.txt 91.231.70.31	200		Warning: Https connections (Standard Port 443) found without support of the http/2 protocol via ALPN. Http/2 is the new Http-Version (old: http 1.1) with some important new features. Update your server software so http/2 is available. Only one TCP-connection per Server (that's a performance boost), Header-Compression and Server Pushs are available. Domain Sharding and Inline-CSS/Javascript shouldn't used with http/2.
	https://alfa-system.pl/ 91.231.70.31	200		Critical: Some script Elements (type text/javascript) with a src-Attribute don't have a defer / async - Attribute. Loading and executing these JavaScripts blocks parsing and rendering the Html-Output. That's bad if your site is large or the connection is slow / mobile usage. Use "async" if the js file has only functions (so nothing is executed after parsing the file) or is independend. Use "defer" if the order of the scripts is important. All "defer" scripts are executed before the DOMContentLoaded event is fired. Check https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script to see some details.: 3 script elements without defer/async.
	https://alfa-system.pl/ 2a0f:1700:1::501	200		Critical: Some script Elements (type text/javascript) with a src-Attribute don't have a defer / async - Attribute. Loading and executing these JavaScripts blocks parsing and rendering the Html-Output. That's bad if your site is large or the connection is slow / mobile usage. Use "async" if the js file has only functions (so nothing is executed after parsing the file) or is independend. Use "defer" if the order of the scripts is important. All "defer" scripts are executed before the DOMContentLoaded event is fired. Check https://developer.mozilla.org/en-US/docs/Web/HTML/Element/script to see some details.: 3 script elements without defer/async.
A	Good: All CSS / JavaScript files are sent compressed (gzip, deflate, br checked). That reduces the content of the files. 20 external CSS / JavaScript files found
A	Good: All images with internal compression not compressed. Some Images (.png, .jpg, .jpeg, .webp, .gif) are already compressed, so an additional compression isn't helpful. 16 images (type image/png, image/jpg, image/jpeg, image/webp, image/gif) found without additional Compression. Not required because these images are already compressed
	Warning: CSS / JavaScript files with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 0 external CSS / JavaScript files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 14 with Cache-Control max-age too short (minimum 7 days), 2 with Cache-Control long enough, 16 complete.
	Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 0 image files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 4 with Cache-Control max-age too short (minimum 7 days), 12 with Cache-Control long enough, 16 complete.
A	Good: All checked attribute values are enclosed in quotation marks (" or ').
A	Good: All img-elements have a valid alt-attribute.: 16 img-elements found.
A	Good: Domainname is not on the "Specially Designated Nationals And Blocked Persons List" (SDN). That's an US-list of individuals and companies owned or controlled by, or acting for or on behalf of, targeted countries. It also lists individuals, groups, and entities, such as terrorists and narcotics traffickers designated under programs that are not country-specific. Collectively, such individuals and companies are called "Specially Designated Nationals" or "SDNs." Their assets are blocked and U.S. persons are generally prohibited from dealing with them. So if a domain name is on that list, it's impossible to create a Letsencrypt certificate with that domain name. Check the list manual - https://www.treasury.gov/resource-center/sanctions/sdn-list/pages/default.aspx
	https://alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de	404	2.137 seconds	Warning: 404 needs more then one second
A	Info: Different Server-Headers found
A	Duration: 273190 milliseconds, 273.190 seconds

8. Connections

Domain

Port

Cert.

Protocol

KeyExchange

Strength

Cipher

Strength

HashAlgorithm

OCSP stapling

Domain/KeyExchange

IP/Strength

Port/Cipher

Cert./Strength

Protocol/HashAlgorithm

OCSP stapling

alfa-system.pl

91.231.70.31

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

alfa-system.pl

91.231.70.31

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

Chain - too much certificates, don't send root certificates	1	CN=alfa-system.pl
	2	CN=YE1, O=Let's Encrypt, C=US
	3	CN=Root YE, O=ISRG, C=US
	4	CN=ISRG Root X2, O=Internet Security Research Group, C=US

alfa-system.pl

2a0f:1700:1::501

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

alfa-system.pl

2a0f:1700:1::501

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

Chain - too much certificates, don't send root certificates	1	CN=alfa-system.pl
	2	CN=YE1, O=Let's Encrypt, C=US
	3	CN=Root YE, O=ISRG, C=US
	4	CN=ISRG Root X2, O=Internet Security Research Group, C=US

www.alfa-system.pl

91.231.70.31

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

www.alfa-system.pl

91.231.70.31

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

Chain - too much certificates, don't send root certificates	1	CN=www.alfa-system.pl
	2	CN=YE1, O=Let's Encrypt, C=US
	3	CN=Root YE, O=ISRG, C=US
	4	CN=ISRG Root X2, O=Internet Security Research Group, C=US

www.alfa-system.pl

2a0f:1700:1::501

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

www.alfa-system.pl

2a0f:1700:1::501

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

Chain - too much certificates, don't send root certificates	1	CN=www.alfa-system.pl
	2	CN=YE1, O=Let's Encrypt, C=US
	3	CN=Root YE, O=ISRG, C=US
	4	CN=ISRG Root X2, O=Internet Security Research Group, C=US

alfa-system.pl

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

alfa-system.pl

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

Chain - too much certificates, don't send root certificates	1	CN=alfa-system.pl
	2	CN=YE1, O=Let's Encrypt, C=US
	3	CN=Root YE, O=ISRG, C=US
	4	CN=ISRG Root X2, O=Internet Security Research Group, C=US

www.alfa-system.pl

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

www.alfa-system.pl

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

Chain - too much certificates, don't send root certificates	1	CN=www.alfa-system.pl
	2	CN=YE1, O=Let's Encrypt, C=US
	3	CN=Root YE, O=ISRG, C=US
	4	CN=ISRG Root X2, O=Internet Security Research Group, C=US

mta-sts.alfa-system.pl

91.231.70.31

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

error checking OCSP stapling

mta-sts.alfa-system.pl

91.231.70.31

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

error checking OCSP stapling

no http/2 via ALPN

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

no http/2 via ALPN

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

mta-sts.alfa-system.pl

2a0f:1700:1::501

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

mta-sts.alfa-system.pl

2a0f:1700:1::501

443

Tls12

ECDH Ephermal

255

Aes128

128

Sha256

not supported

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

http/2 via ALPN supported

Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2

Chain - too much certificates, don't send root certificates	1	CN=mta-sts.alfa-system.pl
	2	CN=YE1, O=Let's Encrypt, C=US
	3	CN=Root YE, O=ISRG, C=US
	4	CN=ISRG Root X2, O=Internet Security Research Group, C=US

9. Certificates

CN=alfa-system.pl

17.09.2026

16.12.2026
expires in 70 days

alfa-system.pl - 1 entry

CN=alfa-system.pl

17.09.2026

16.12.2026
expires in 70 days

alfa-system.pl - 1 entry

Keyalgorithm	EC Public Key (256 bit, prime256v1)
Signatur:	ECDSA SHA384
Serial Number:	05FB151CBFCC219F2456F08E399F2F1C48A3
Thumbprint:	0DB2031CF9A508E454DABF5468EEF1DFB4EC5495
SHA256 / Certificate:	M3UkJ0RAt9WbVtjvyMtFUhoL1qp/muX9HDpmATlsDuo=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	e5ec027c5b3aeb1327fee12bb01e8bdad3f9be99b8fc36b164bb0bf5734f3a9a
SHA256 hex / Subject Public Key Information (SPKI):	e5ec027c5b3aeb1327fee12bb01e8bdad3f9be99b8fc36b164bb0bf5734f3a9a (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=alfa-system.pl

17.09.2026

16.12.2026
expires in 70 days

alfa-system.pl - 1 entry

CN=alfa-system.pl

17.09.2026

16.12.2026
expires in 70 days

alfa-system.pl - 1 entry

Keyalgorithm	EC Public Key (256 bit, prime256v1)
Signatur:	ECDSA SHA384
Serial Number:	05FB151CBFCC219F2456F08E399F2F1C48A3
Thumbprint:	0DB2031CF9A508E454DABF5468EEF1DFB4EC5495
SHA256 / Certificate:	M3UkJ0RAt9WbVtjvyMtFUhoL1qp/muX9HDpmATlsDuo=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	e5ec027c5b3aeb1327fee12bb01e8bdad3f9be99b8fc36b164bb0bf5734f3a9a
SHA256 hex / Subject Public Key Information (SPKI):	e5ec027c5b3aeb1327fee12bb01e8bdad3f9be99b8fc36b164bb0bf5734f3a9a (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=alfa-system.pl

17.09.2026

16.12.2026
expires in 70 days

alfa-system.pl - 1 entry

CN=alfa-system.pl

17.09.2026

16.12.2026
expires in 70 days

alfa-system.pl - 1 entry

Keyalgorithm	EC Public Key (256 bit, prime256v1)
Signatur:	ECDSA SHA384
Serial Number:	05FB151CBFCC219F2456F08E399F2F1C48A3
Thumbprint:	0DB2031CF9A508E454DABF5468EEF1DFB4EC5495
SHA256 / Certificate:	M3UkJ0RAt9WbVtjvyMtFUhoL1qp/muX9HDpmATlsDuo=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	e5ec027c5b3aeb1327fee12bb01e8bdad3f9be99b8fc36b164bb0bf5734f3a9a
SHA256 hex / Subject Public Key Information (SPKI):	e5ec027c5b3aeb1327fee12bb01e8bdad3f9be99b8fc36b164bb0bf5734f3a9a (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=alfa-system.pl

17.09.2026

16.12.2026
expires in 70 days

alfa-system.pl - 1 entry

CN=alfa-system.pl

17.09.2026

16.12.2026
expires in 70 days

alfa-system.pl - 1 entry

Keyalgorithm	EC Public Key (256 bit, prime256v1)
Signatur:	ECDSA SHA384
Serial Number:	05FB151CBFCC219F2456F08E399F2F1C48A3
Thumbprint:	0DB2031CF9A508E454DABF5468EEF1DFB4EC5495
SHA256 / Certificate:	M3UkJ0RAt9WbVtjvyMtFUhoL1qp/muX9HDpmATlsDuo=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	e5ec027c5b3aeb1327fee12bb01e8bdad3f9be99b8fc36b164bb0bf5734f3a9a
SHA256 hex / Subject Public Key Information (SPKI):	e5ec027c5b3aeb1327fee12bb01e8bdad3f9be99b8fc36b164bb0bf5734f3a9a (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	5DDD70DD31F801C85C186A7A04B80AFE
Thumbprint:	D09370A9864982A5047DA46373540256D08A3C81
SHA256 / Certificate:	ojctBkMelxY2Xu7UfsAgNRSX0YL8wDjkV+WBaKA8rAc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	6ebcefb4210b088654a38b03fea3d7d1c711b4fb1ddc363a45f9b1a4e53da01e
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	5DDD70DD31F801C85C186A7A04B80AFE
Thumbprint:	D09370A9864982A5047DA46373540256D08A3C81
SHA256 / Certificate:	ojctBkMelxY2Xu7UfsAgNRSX0YL8wDjkV+WBaKA8rAc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	6ebcefb4210b088654a38b03fea3d7d1c711b4fb1ddc363a45f9b1a4e53da01e
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	5DDD70DD31F801C85C186A7A04B80AFE
Thumbprint:	D09370A9864982A5047DA46373540256D08A3C81
SHA256 / Certificate:	ojctBkMelxY2Xu7UfsAgNRSX0YL8wDjkV+WBaKA8rAc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	6ebcefb4210b088654a38b03fea3d7d1c711b4fb1ddc363a45f9b1a4e53da01e
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	5DDD70DD31F801C85C186A7A04B80AFE
Thumbprint:	D09370A9864982A5047DA46373540256D08A3C81
SHA256 / Certificate:	ojctBkMelxY2Xu7UfsAgNRSX0YL8wDjkV+WBaKA8rAc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	6ebcefb4210b088654a38b03fea3d7d1c711b4fb1ddc363a45f9b1a4e53da01e
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=Root YE, O=ISRG, C=US

13.05.2026

03.09.2032
expires in 2158 days

CN=Root YE, O=ISRG, C=US

13.05.2026

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	00872165FC34B6E5FBA8ADD5B3705FB53A
Thumbprint:	F37620FC4B1CDDD2A3D74B1D5E8DB42E244CA006
SHA256 / Certificate:	D8CQHMorrp6f27AtUNAvEJT3s2ZyCGmRueiXYm3EhfA=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	b0292ae545978e0fbb98abbd94c861605e5b18bb32ed523f50d5b7b5c71d47bc
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

10.

CN=Root YE, O=ISRG, C=US

03.09.2025

03.09.2032
expires in 2158 days

10.

CN=Root YE, O=ISRG, C=US

03.09.2025

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	6F5E60E69C3A7469906619D56E4F499A
Thumbprint:	40050D482E5AC1271EE1FE5D06F542A498145B0C
SHA256 / Certificate:	LXtbQp+AwPCgMqAFH2lqD40LmJgOcfbyROrGNnvEyRc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	b0292ae545978e0fbb98abbd94c861605e5b18bb32ed523f50d5b7b5c71d47bc
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

11.

CN=Root YE, O=ISRG, C=US

03.09.2025

03.09.2032
expires in 2158 days

11.

CN=Root YE, O=ISRG, C=US

03.09.2025

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	6F5E60E69C3A7469906619D56E4F499A
Thumbprint:	40050D482E5AC1271EE1FE5D06F542A498145B0C
SHA256 / Certificate:	LXtbQp+AwPCgMqAFH2lqD40LmJgOcfbyROrGNnvEyRc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	b0292ae545978e0fbb98abbd94c861605e5b18bb32ed523f50d5b7b5c71d47bc
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

12.

CN=Root YE, O=ISRG, C=US

13.05.2026

03.09.2032
expires in 2158 days

12.

CN=Root YE, O=ISRG, C=US

13.05.2026

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	00872165FC34B6E5FBA8ADD5B3705FB53A
Thumbprint:	F37620FC4B1CDDD2A3D74B1D5E8DB42E244CA006
SHA256 / Certificate:	D8CQHMorrp6f27AtUNAvEJT3s2ZyCGmRueiXYm3EhfA=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	b0292ae545978e0fbb98abbd94c861605e5b18bb32ed523f50d5b7b5c71d47bc
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

13.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

04.09.2020

17.09.2040
expires in 5094 days

13.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

04.09.2020

17.09.2040
expires in 5094 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	41D29DD172EAEEA780C12C6CE92F8752
Thumbprint:	BDB1B93CD5978D45C6261455F8DB95C75AD153AF
SHA256 / Certificate:	aXKbjhWobvwXelevtxcd/GSt0owvyozxUH40RTzLFHA=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

14.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

04.09.2020

17.09.2040
expires in 5094 days

14.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

04.09.2020

17.09.2040
expires in 5094 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	41D29DD172EAEEA780C12C6CE92F8752
Thumbprint:	BDB1B93CD5978D45C6261455F8DB95C75AD153AF
SHA256 / Certificate:	aXKbjhWobvwXelevtxcd/GSt0owvyozxUH40RTzLFHA=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

15.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

03.09.2025

03.09.2032
expires in 2158 days

15.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

03.09.2025

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	7F2AB707B5BDD93C9FD48B7C6029DB33
Thumbprint:	B8FB05664499509659A0C8F081816C473824AD1D
SHA256 / Certificate:	AL6u8oAnfjiZnTxgsnc26PIeeCw9S0RKw01GWnqyh8U=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

16.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

13.05.2026

03.09.2032
expires in 2158 days

16.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

13.05.2026

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	6C8F1DC727C7117F7BAF853AC980F9CD
Thumbprint:	3C34E356C7FC17F5ACF04824BC587C6C623951A2
SHA256 / Certificate:	7l96vWmBuwJVYyzY9JKDRRtLGIRNEgQLRO4A8HuP4sY=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)

CN=www.alfa-system.pl

25.08.2026

23.11.2026
expires in 47 days

www.alfa-system.pl - 1 entry

CN=www.alfa-system.pl

25.08.2026

23.11.2026
expires in 47 days

www.alfa-system.pl - 1 entry

Keyalgorithm	EC Public Key (256 bit, prime256v1)
Signatur:	ECDSA SHA384
Serial Number:	061719377972C8562DF46184DFCAF0EB6D44
Thumbprint:	20A045FB56FC8DE098162AD158BA6C1956EA05B7
SHA256 / Certificate:	uk411mxrVdtLsiTzOEoPoGY5g8ls5Mpp5qBQvTedwTQ=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	680c608212b0d3fb245bef3b327df3d7a1b76e613185815837011c3c52ab0c7c
SHA256 hex / Subject Public Key Information (SPKI):	680c608212b0d3fb245bef3b327df3d7a1b76e613185815837011c3c52ab0c7c (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=www.alfa-system.pl

25.08.2026

23.11.2026
expires in 47 days

www.alfa-system.pl - 1 entry

CN=www.alfa-system.pl

25.08.2026

23.11.2026
expires in 47 days

www.alfa-system.pl - 1 entry

Keyalgorithm	EC Public Key (256 bit, prime256v1)
Signatur:	ECDSA SHA384
Serial Number:	061719377972C8562DF46184DFCAF0EB6D44
Thumbprint:	20A045FB56FC8DE098162AD158BA6C1956EA05B7
SHA256 / Certificate:	uk411mxrVdtLsiTzOEoPoGY5g8ls5Mpp5qBQvTedwTQ=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	680c608212b0d3fb245bef3b327df3d7a1b76e613185815837011c3c52ab0c7c
SHA256 hex / Subject Public Key Information (SPKI):	680c608212b0d3fb245bef3b327df3d7a1b76e613185815837011c3c52ab0c7c (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=www.alfa-system.pl

25.08.2026

23.11.2026
expires in 47 days

www.alfa-system.pl - 1 entry

CN=www.alfa-system.pl

25.08.2026

23.11.2026
expires in 47 days

www.alfa-system.pl - 1 entry

Keyalgorithm	EC Public Key (256 bit, prime256v1)
Signatur:	ECDSA SHA384
Serial Number:	061719377972C8562DF46184DFCAF0EB6D44
Thumbprint:	20A045FB56FC8DE098162AD158BA6C1956EA05B7
SHA256 / Certificate:	uk411mxrVdtLsiTzOEoPoGY5g8ls5Mpp5qBQvTedwTQ=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	680c608212b0d3fb245bef3b327df3d7a1b76e613185815837011c3c52ab0c7c
SHA256 hex / Subject Public Key Information (SPKI):	680c608212b0d3fb245bef3b327df3d7a1b76e613185815837011c3c52ab0c7c (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=www.alfa-system.pl

25.08.2026

23.11.2026
expires in 47 days

www.alfa-system.pl - 1 entry

CN=www.alfa-system.pl

25.08.2026

23.11.2026
expires in 47 days

www.alfa-system.pl - 1 entry

Keyalgorithm	EC Public Key (256 bit, prime256v1)
Signatur:	ECDSA SHA384
Serial Number:	061719377972C8562DF46184DFCAF0EB6D44
Thumbprint:	20A045FB56FC8DE098162AD158BA6C1956EA05B7
SHA256 / Certificate:	uk411mxrVdtLsiTzOEoPoGY5g8ls5Mpp5qBQvTedwTQ=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	680c608212b0d3fb245bef3b327df3d7a1b76e613185815837011c3c52ab0c7c
SHA256 hex / Subject Public Key Information (SPKI):	680c608212b0d3fb245bef3b327df3d7a1b76e613185815837011c3c52ab0c7c (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	5DDD70DD31F801C85C186A7A04B80AFE
Thumbprint:	D09370A9864982A5047DA46373540256D08A3C81
SHA256 / Certificate:	ojctBkMelxY2Xu7UfsAgNRSX0YL8wDjkV+WBaKA8rAc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	6ebcefb4210b088654a38b03fea3d7d1c711b4fb1ddc363a45f9b1a4e53da01e
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	5DDD70DD31F801C85C186A7A04B80AFE
Thumbprint:	D09370A9864982A5047DA46373540256D08A3C81
SHA256 / Certificate:	ojctBkMelxY2Xu7UfsAgNRSX0YL8wDjkV+WBaKA8rAc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	6ebcefb4210b088654a38b03fea3d7d1c711b4fb1ddc363a45f9b1a4e53da01e
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	5DDD70DD31F801C85C186A7A04B80AFE
Thumbprint:	D09370A9864982A5047DA46373540256D08A3C81
SHA256 / Certificate:	ojctBkMelxY2Xu7UfsAgNRSX0YL8wDjkV+WBaKA8rAc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	6ebcefb4210b088654a38b03fea3d7d1c711b4fb1ddc363a45f9b1a4e53da01e
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	5DDD70DD31F801C85C186A7A04B80AFE
Thumbprint:	D09370A9864982A5047DA46373540256D08A3C81
SHA256 / Certificate:	ojctBkMelxY2Xu7UfsAgNRSX0YL8wDjkV+WBaKA8rAc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	6ebcefb4210b088654a38b03fea3d7d1c711b4fb1ddc363a45f9b1a4e53da01e
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=Root YE, O=ISRG, C=US

03.09.2025

03.09.2032
expires in 2158 days

CN=Root YE, O=ISRG, C=US

03.09.2025

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	6F5E60E69C3A7469906619D56E4F499A
Thumbprint:	40050D482E5AC1271EE1FE5D06F542A498145B0C
SHA256 / Certificate:	LXtbQp+AwPCgMqAFH2lqD40LmJgOcfbyROrGNnvEyRc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	b0292ae545978e0fbb98abbd94c861605e5b18bb32ed523f50d5b7b5c71d47bc
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

10.

CN=Root YE, O=ISRG, C=US

03.09.2025

03.09.2032
expires in 2158 days

10.

CN=Root YE, O=ISRG, C=US

03.09.2025

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	6F5E60E69C3A7469906619D56E4F499A
Thumbprint:	40050D482E5AC1271EE1FE5D06F542A498145B0C
SHA256 / Certificate:	LXtbQp+AwPCgMqAFH2lqD40LmJgOcfbyROrGNnvEyRc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	b0292ae545978e0fbb98abbd94c861605e5b18bb32ed523f50d5b7b5c71d47bc
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

11.

CN=Root YE, O=ISRG, C=US

13.05.2026

03.09.2032
expires in 2158 days

11.

CN=Root YE, O=ISRG, C=US

13.05.2026

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	00872165FC34B6E5FBA8ADD5B3705FB53A
Thumbprint:	F37620FC4B1CDDD2A3D74B1D5E8DB42E244CA006
SHA256 / Certificate:	D8CQHMorrp6f27AtUNAvEJT3s2ZyCGmRueiXYm3EhfA=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	b0292ae545978e0fbb98abbd94c861605e5b18bb32ed523f50d5b7b5c71d47bc
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

12.

CN=Root YE, O=ISRG, C=US

13.05.2026

03.09.2032
expires in 2158 days

12.

CN=Root YE, O=ISRG, C=US

13.05.2026

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	00872165FC34B6E5FBA8ADD5B3705FB53A
Thumbprint:	F37620FC4B1CDDD2A3D74B1D5E8DB42E244CA006
SHA256 / Certificate:	D8CQHMorrp6f27AtUNAvEJT3s2ZyCGmRueiXYm3EhfA=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	b0292ae545978e0fbb98abbd94c861605e5b18bb32ed523f50d5b7b5c71d47bc
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

13.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

13.05.2026

03.09.2032
expires in 2158 days

13.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

13.05.2026

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	6C8F1DC727C7117F7BAF853AC980F9CD
Thumbprint:	3C34E356C7FC17F5ACF04824BC587C6C623951A2
SHA256 / Certificate:	7l96vWmBuwJVYyzY9JKDRRtLGIRNEgQLRO4A8HuP4sY=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)

14.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

03.09.2025

03.09.2032
expires in 2158 days

14.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

03.09.2025

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	7F2AB707B5BDD93C9FD48B7C6029DB33
Thumbprint:	B8FB05664499509659A0C8F081816C473824AD1D
SHA256 / Certificate:	AL6u8oAnfjiZnTxgsnc26PIeeCw9S0RKw01GWnqyh8U=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

15.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

04.09.2020

17.09.2040
expires in 5094 days

15.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

04.09.2020

17.09.2040
expires in 5094 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	41D29DD172EAEEA780C12C6CE92F8752
Thumbprint:	BDB1B93CD5978D45C6261455F8DB95C75AD153AF
SHA256 / Certificate:	aXKbjhWobvwXelevtxcd/GSt0owvyozxUH40RTzLFHA=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

16.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

04.09.2020

17.09.2040
expires in 5094 days

16.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

04.09.2020

17.09.2040
expires in 5094 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	41D29DD172EAEEA780C12C6CE92F8752
Thumbprint:	BDB1B93CD5978D45C6261455F8DB95C75AD153AF
SHA256 / Certificate:	aXKbjhWobvwXelevtxcd/GSt0owvyozxUH40RTzLFHA=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

CN=mta-sts.alfa-system.pl

02.09.2026

01.12.2026
expires in 55 days

mta-sts.alfa-system.pl - 1 entry

CN=mta-sts.alfa-system.pl

02.09.2026

01.12.2026
expires in 55 days

mta-sts.alfa-system.pl - 1 entry

Keyalgorithm	EC Public Key (256 bit, prime256v1)
Signatur:	ECDSA SHA384
Serial Number:	0508960D56E50555F809C31AAB210F87010A
Thumbprint:	E4081F739EFA11AFD16BC9AB16DABA284F418ED4
SHA256 / Certificate:	nNZWl3NnhpU+6myeizVkiVAUztpx/PSpKnNiaf230IQ=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	8ba66bdb95d9eeb39afb1440a91d4fb5b3ca2d49046dca4405eb889c37ca8ee5
SHA256 hex / Subject Public Key Information (SPKI):	8ba66bdb95d9eeb39afb1440a91d4fb5b3ca2d49046dca4405eb889c37ca8ee5 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=mta-sts.alfa-system.pl

02.09.2026

01.12.2026
expires in 55 days

mta-sts.alfa-system.pl - 1 entry

CN=mta-sts.alfa-system.pl

02.09.2026

01.12.2026
expires in 55 days

mta-sts.alfa-system.pl - 1 entry

Keyalgorithm	EC Public Key (256 bit, prime256v1)
Signatur:	ECDSA SHA384
Serial Number:	0508960D56E50555F809C31AAB210F87010A
Thumbprint:	E4081F739EFA11AFD16BC9AB16DABA284F418ED4
SHA256 / Certificate:	nNZWl3NnhpU+6myeizVkiVAUztpx/PSpKnNiaf230IQ=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	8ba66bdb95d9eeb39afb1440a91d4fb5b3ca2d49046dca4405eb889c37ca8ee5
SHA256 hex / Subject Public Key Information (SPKI):	8ba66bdb95d9eeb39afb1440a91d4fb5b3ca2d49046dca4405eb889c37ca8ee5 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=mta-sts.alfa-system.pl

02.09.2026

01.12.2026
expires in 55 days

mta-sts.alfa-system.pl - 1 entry

CN=mta-sts.alfa-system.pl

02.09.2026

01.12.2026
expires in 55 days

mta-sts.alfa-system.pl - 1 entry

Keyalgorithm	EC Public Key (256 bit, prime256v1)
Signatur:	ECDSA SHA384
Serial Number:	0508960D56E50555F809C31AAB210F87010A
Thumbprint:	E4081F739EFA11AFD16BC9AB16DABA284F418ED4
SHA256 / Certificate:	nNZWl3NnhpU+6myeizVkiVAUztpx/PSpKnNiaf230IQ=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	8ba66bdb95d9eeb39afb1440a91d4fb5b3ca2d49046dca4405eb889c37ca8ee5
SHA256 hex / Subject Public Key Information (SPKI):	8ba66bdb95d9eeb39afb1440a91d4fb5b3ca2d49046dca4405eb889c37ca8ee5 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=mta-sts.alfa-system.pl

02.09.2026

01.12.2026
expires in 55 days

mta-sts.alfa-system.pl - 1 entry

CN=mta-sts.alfa-system.pl

02.09.2026

01.12.2026
expires in 55 days

mta-sts.alfa-system.pl - 1 entry

Keyalgorithm	EC Public Key (256 bit, prime256v1)
Signatur:	ECDSA SHA384
Serial Number:	0508960D56E50555F809C31AAB210F87010A
Thumbprint:	E4081F739EFA11AFD16BC9AB16DABA284F418ED4
SHA256 / Certificate:	nNZWl3NnhpU+6myeizVkiVAUztpx/PSpKnNiaf230IQ=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	8ba66bdb95d9eeb39afb1440a91d4fb5b3ca2d49046dca4405eb889c37ca8ee5
SHA256 hex / Subject Public Key Information (SPKI):	8ba66bdb95d9eeb39afb1440a91d4fb5b3ca2d49046dca4405eb889c37ca8ee5 (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	yes
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	5DDD70DD31F801C85C186A7A04B80AFE
Thumbprint:	D09370A9864982A5047DA46373540256D08A3C81
SHA256 / Certificate:	ojctBkMelxY2Xu7UfsAgNRSX0YL8wDjkV+WBaKA8rAc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	6ebcefb4210b088654a38b03fea3d7d1c711b4fb1ddc363a45f9b1a4e53da01e
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	5DDD70DD31F801C85C186A7A04B80AFE
Thumbprint:	D09370A9864982A5047DA46373540256D08A3C81
SHA256 / Certificate:	ojctBkMelxY2Xu7UfsAgNRSX0YL8wDjkV+WBaKA8rAc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	6ebcefb4210b088654a38b03fea3d7d1c711b4fb1ddc363a45f9b1a4e53da01e
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	5DDD70DD31F801C85C186A7A04B80AFE
Thumbprint:	D09370A9864982A5047DA46373540256D08A3C81
SHA256 / Certificate:	ojctBkMelxY2Xu7UfsAgNRSX0YL8wDjkV+WBaKA8rAc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	6ebcefb4210b088654a38b03fea3d7d1c711b4fb1ddc363a45f9b1a4e53da01e
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

CN=YE1, O=Let's Encrypt, C=US

03.09.2025

03.09.2028
expires in 697 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	5DDD70DD31F801C85C186A7A04B80AFE
Thumbprint:	D09370A9864982A5047DA46373540256D08A3C81
SHA256 / Certificate:	ojctBkMelxY2Xu7UfsAgNRSX0YL8wDjkV+WBaKA8rAc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	6ebcefb4210b088654a38b03fea3d7d1c711b4fb1ddc363a45f9b1a4e53da01e
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

CN=Root YE, O=ISRG, C=US

13.05.2026

03.09.2032
expires in 2158 days

CN=Root YE, O=ISRG, C=US

13.05.2026

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	00872165FC34B6E5FBA8ADD5B3705FB53A
Thumbprint:	F37620FC4B1CDDD2A3D74B1D5E8DB42E244CA006
SHA256 / Certificate:	D8CQHMorrp6f27AtUNAvEJT3s2ZyCGmRueiXYm3EhfA=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	b0292ae545978e0fbb98abbd94c861605e5b18bb32ed523f50d5b7b5c71d47bc
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

10.

CN=Root YE, O=ISRG, C=US

13.05.2026

03.09.2032
expires in 2158 days

10.

CN=Root YE, O=ISRG, C=US

13.05.2026

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	00872165FC34B6E5FBA8ADD5B3705FB53A
Thumbprint:	F37620FC4B1CDDD2A3D74B1D5E8DB42E244CA006
SHA256 / Certificate:	D8CQHMorrp6f27AtUNAvEJT3s2ZyCGmRueiXYm3EhfA=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	b0292ae545978e0fbb98abbd94c861605e5b18bb32ed523f50d5b7b5c71d47bc
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1)

11.

CN=Root YE, O=ISRG, C=US

03.09.2025

03.09.2032
expires in 2158 days

11.

CN=Root YE, O=ISRG, C=US

03.09.2025

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	6F5E60E69C3A7469906619D56E4F499A
Thumbprint:	40050D482E5AC1271EE1FE5D06F542A498145B0C
SHA256 / Certificate:	LXtbQp+AwPCgMqAFH2lqD40LmJgOcfbyROrGNnvEyRc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	b0292ae545978e0fbb98abbd94c861605e5b18bb32ed523f50d5b7b5c71d47bc
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

12.

CN=Root YE, O=ISRG, C=US

03.09.2025

03.09.2032
expires in 2158 days

12.

CN=Root YE, O=ISRG, C=US

03.09.2025

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	6F5E60E69C3A7469906619D56E4F499A
Thumbprint:	40050D482E5AC1271EE1FE5D06F542A498145B0C
SHA256 / Certificate:	LXtbQp+AwPCgMqAFH2lqD40LmJgOcfbyROrGNnvEyRc=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	b0292ae545978e0fbb98abbd94c861605e5b18bb32ed523f50d5b7b5c71d47bc
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

13.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

03.09.2025

03.09.2032
expires in 2158 days

13.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

03.09.2025

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	7F2AB707B5BDD93C9FD48B7C6029DB33
Thumbprint:	B8FB05664499509659A0C8F081816C473824AD1D
SHA256 / Certificate:	AL6u8oAnfjiZnTxgsnc26PIeeCw9S0RKw01GWnqyh8U=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

14.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

04.09.2020

17.09.2040
expires in 5094 days

14.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

04.09.2020

17.09.2040
expires in 5094 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	41D29DD172EAEEA780C12C6CE92F8752
Thumbprint:	BDB1B93CD5978D45C6261455F8DB95C75AD153AF
SHA256 / Certificate:	aXKbjhWobvwXelevtxcd/GSt0owvyozxUH40RTzLFHA=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

15.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

04.09.2020

17.09.2040
expires in 5094 days

15.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

04.09.2020

17.09.2040
expires in 5094 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	ECDSA SHA384
Serial Number:	41D29DD172EAEEA780C12C6CE92F8752
Thumbprint:	BDB1B93CD5978D45C6261455F8DB95C75AD153AF
SHA256 / Certificate:	aXKbjhWobvwXelevtxcd/GSt0owvyozxUH40RTzLFHA=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:

16.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

13.05.2026

03.09.2032
expires in 2158 days

16.

CN=ISRG Root X2, O=Internet Security Research Group, C=US

13.05.2026

03.09.2032
expires in 2158 days

Keyalgorithm	EC Public Key (384 bit, secp384r1)
Signatur:	SHA256 With RSA-Encryption
Serial Number:	6C8F1DC727C7117F7BAF853AC980F9CD
Thumbprint:	3C34E356C7FC17F5ACF04824BC587C6C623951A2
SHA256 / Certificate:	7l96vWmBuwJVYyzY9JKDRRtLGIRNEgQLRO4A8HuP4sY=
SHA256 hex / Cert (DANE * 0 1):	e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):	762195c225586ee6c0237456e2107dc54f1efc21f61a792ebd515913cce68332
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:	Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:	no
Certificate Transparency:	no
Enhanced Key Usage:	Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)

10. Last Certificates - Certificate Transparency Log Check

1. Source CertSpotter - active certificates (one check per day)

Issuer				last 7 days	active	num Certs
CN=YE1, O=Let's Encrypt, C=US				0	3	4
CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL				0	0	3
CN=E7, O=Let's Encrypt, C=US				0	0	3
CN=E5, O=Let's Encrypt, C=US				0	0	2
CN=E8, O=Let's Encrypt, C=US				0	0	2
CN=Certum DV TLS G2 R39 CA, O=Asseco Data Systems S.A., C=PL				0	1	1

CertSpotter-Id	Issuer	not before	not after	Domain names	LE-Duplicate	next LE
17225579177 leaf cert	CN=YE1, O=Let's Encrypt, C=US	2026-09-17 03:21:23	2026-12-16 03:21:22	alfa-system.pl - 1 entries
16774060743 leaf cert	CN=YE1, O=Let's Encrypt, C=US	2026-08-25 17:41:40	2026-11-23 17:41:39	www.alfa-system.pl - 1 entries
15965781186 leaf cert	CN=YE1, O=Let's Encrypt, C=US	2026-07-19 21:49:03	2026-10-17 21:49:02	alfa-system.pl - 1 entries
15581020624 leaf cert	CN=YE1, O=Let's Encrypt, C=US	2026-06-26 18:39:03	2026-09-24 18:39:02	www.alfa-system.pl - 1 entries
15000995724 leaf cert	CN=E8, O=Let's Encrypt, C=US	2026-05-21 05:50:01	2026-08-19 05:50:00	alfa-system.pl - 1 entries
14678556605 leaf cert	CN=E7, O=Let's Encrypt, C=US	2026-04-27 19:32:40	2026-07-26 19:32:39	www.alfa-system.pl - 1 entries
12815805469 precert	CN=Certum DV TLS G2 R39 CA, O=Asseco Data Systems S.A., C=PL	2025-11-21 08:11:22	2026-11-21 08:11:21	*.alfa-system.pl, alfa-system.pl - 2 entries
12516473833 leaf cert	CN=E7, O=Let's Encrypt, C=US	2025-10-31 06:48:05	2026-01-29 06:48:04	www.alfa-system.pl - 1 entries
12007418225 leaf cert	CN=E7, O=Let's Encrypt, C=US	2025-09-24 10:09:48	2025-12-23 10:09:47	alfa-system.pl - 1 entries
11711606785 leaf cert	CN=E8, O=Let's Encrypt, C=US	2025-09-01 07:44:37	2025-11-30 07:44:36	www.alfa-system.pl - 1 entries
11262877062 leaf cert	CN=E5, O=Let's Encrypt, C=US	2025-07-26 10:58:50	2025-10-24 10:58:49	alfa-system.pl - 1 entries
10552872901 leaf cert	CN=E5, O=Let's Encrypt, C=US	2025-05-27 11:54:55	2025-08-25 11:54:54	alfa-system.pl - 1 entries
8766003785 precert	CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL	2024-11-26 19:10:35	2025-11-26 19:10:34	*.alfa-system.pl, alfa-system.pl - 2 entries
6279068237 leaf cert	CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL	2023-11-29 21:11:51	2024-11-28 21:11:50	*.alfa-system.pl, alfa-system.pl - 2 entries
4493248735 leaf cert	CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL	2022-12-01 11:05:43	2023-12-01 00:00:00	*.alfa-system.pl, alfa-system.pl - 2 entries

2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > of the last months are listed

Issuer				last 7 days	active	num Certs
CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL				0	0	3
CN=E5, O=Let's Encrypt, C=US				0	0	2
CN=E7, O=Let's Encrypt, C=US				0	0	1
CN=E8, O=Let's Encrypt, C=US				0	0	1

CRT-Id	Issuer	not before	not after	Domain names	LE-Duplicate	next LE
21310685112 leaf cert	CN=E7, O=Let's Encrypt, C=US	2025-09-24 08:09:48	2025-12-23 09:09:47	alfa-system.pl 1 entries
20719501402 leaf cert	CN=E8, O=Let's Encrypt, C=US	2025-09-01 05:44:37	2025-11-30 06:44:36	www.alfa-system.pl 1 entries
19919151799 leaf cert	CN=E5, O=Let's Encrypt, C=US	2025-07-26 08:58:50	2025-10-24 08:58:49	alfa-system.pl 1 entries
18654225682 leaf cert	CN=E5, O=Let's Encrypt, C=US	2025-05-27 09:54:55	2025-08-25 09:54:54	alfa-system.pl 1 entries
15509670669 precert	CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL	2024-11-26 18:10:35	2025-11-26 18:10:34	*.alfa-system.pl, alfa-system.pl 2 entries
12385520936 leaf cert	CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL	2023-11-29 20:11:51	2024-11-28 20:11:50	*.alfa-system.pl, alfa-system.pl 2 entries
9032851454 leaf cert	CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL	2022-12-01 10:05:43	2023-11-30 23:00:00	*.alfa-system.pl, alfa-system.pl 2 entries

11. Html-Content - Entries

Summary

							Subresource Integrity (SRI)
Domainname	HtmlElement	rel/property	∑	∑ size	∑ problems	∑ int.	∑ ext.	∑ Origin poss.	∑ SRI ParseErrors	∑ SRI valid	∑ SRI missing
https://alfa-system.pl/ 91.231.70.31	a		84		0			0	0	0
	img		2	19,480 Bytes	0	2	0	0	0	0
	link	stylesheet	5	98,728 Bytes	0	4	1	1	0	0	-1
	link	other	9	100,935 Bytes	1	7	0	0	0	0
	meta	apple	3		0			0	0	0
	meta	og	5	9,173 Bytes	0	1	0	0	0	0
	meta	other	7		0			0	0	0
	picture		6		0			0	0	0
	script		3	51,088 Bytes	3	3	0	0	0	0
https://alfa-system.pl/ 2a0f:1700:1::501	a		84		0			0	0	0
	img		2	19,480 Bytes	0	2	0	0	0	0
	link	stylesheet	5	98,728 Bytes	0	4	1	1	0	0	-1
	link	other	9	100,935 Bytes	1	7	0	0	0	0
	meta	apple	3		0			0	0	0
	meta	og	5	9,156 Bytes	0	1	0	0	0	0
	meta	other	7		0			0	0	0
	picture		6		0			0	0	0
	script		3	51,088 Bytes	3	3	0	0	0	0

Details (currently limited to 500 rows - some problems with spam users)

Domainname	Html-Element	name/equiv/ property/rel	href/src/content	HttpStatus	∑	Status
https://alfa-system.pl/ 91.231.70.31	a		#main-content				1	ok
								ok


	a		https://alfa-system.aqi.eco/pl				1	ok
								ok


	a		https://alfa-system.pl				2	ok
								ok


	a		https://alfa-system.pl/dokumenty/internet				1	ok
								ok


	a		https://alfa-system.pl/dokumenty/telefon				1	ok
								ok


	a		https://alfa-system.pl/dokumenty/telewizja				3	ok
								ok


	a		https://alfa-system.pl/firma/deklaracja_dostepnosci				1	ok
								ok


	a		https://alfa-system.pl/firma/informacje				1	ok
								ok


	a		https://alfa-system.pl/firma/praca				1	ok
								ok


	a		https://alfa-system.pl/firma/rodo				1	ok
								ok


	a		https://alfa-system.pl/firma/spory				1	ok
								ok


	a		https://alfa-system.pl/internet/swiatlowod				3	ok
								ok


	a		https://alfa-system.pl/kontakt/dane_teleadresowe				2	ok
								ok


	a		https://alfa-system.pl/monitoring/ogolnie				3	ok
								ok


	a		https://alfa-system.pl/promocje/dwupak				2	ok
								ok


	a		https://alfa-system.pl/promocje/internet_2_1				3	ok
								ok


	a		https://alfa-system.pl/promocje/internet_rodzina_trzy_plus				2	ok
								ok


	a		https://alfa-system.pl/promocje/internet_symetryk				2	ok
								ok


	a		https://alfa-system.pl/promocje/pakiet_canal_plus				3	ok
								ok


	a		https://alfa-system.pl/promocje/pakiet_disney_plus				2	ok
								ok


	a		https://alfa-system.pl/promocje/pakiet_eleven				3	ok
								ok


	a		https://alfa-system.pl/promocje/pakiet_filmbox_plus				2	ok
								ok


	a		https://alfa-system.pl/promocje/pakiet_hbo_plus_max				3	ok
								ok


	a		https://alfa-system.pl/promocje/zakabluj_sasiada				2	ok
								ok


	a		https://alfa-system.pl/strefaKlienta/cyberbezpieczenstwo				1	ok
								ok


	a		https://alfa-system.pl/strefaKlienta/pomiar_predkosci				1	ok
								ok


	a		https://alfa-system.pl/strefaKlienta/porady				1	ok
								ok


	a		https://alfa-system.pl/strefaKlienta/serwis_sms				1	ok
								ok


	a		https://alfa-system.pl/strefaKlienta/siec_bezprzewodowa				1	ok
								ok


	a		https://alfa-system.pl/strefaKlienta/zdalna_pomoc				1	ok
								ok


	a		https://alfa-system.pl/telefon/stacjonarny				3	ok
								ok


	a		https://alfa-system.pl/telewizja/jambox_go				2	ok
								ok


	a		https://alfa-system.pl/telewizja/lista_kanalow				2	ok
								ok


	a		https://alfa-system.pl/telewizja/podstawowe_plus				3	ok
								ok


	a		https://alfa-system.pl/telewizja/polecamy				2	ok
								ok


	a		https://alfa-system.pl/telewizja/poradniki				2	ok
								ok


	a		https://alfa-system.pl/telewizja/stb				2	ok
								ok


	a		https://alfa-system.pl/telewizja/telewizja_interaktywna				2	ok
								ok


	a		https://alfa-system.pl/telewizja/tv_smart				2	ok
								ok


	a		https://bok.alfa-system.pl				1	ok
								ok


	a		https://go.jambox.pl/				2	ok
								ok


	a		https://poczta.alfa-system.pl/				1	ok
								ok


	a		https://www.facebook.com/pages/Alfa-System/110837305666220				1	ok
								ok


	a		https://www.instagram.com/alfa.system.knurow/				1	ok
								ok


	a		https://www.jambox.pl/lista-kanalow-filtr				2	ok
								ok


	a		https://www.youtube.com/channel/UC686wWGukelfoZo5wUCuBjA				1	ok
								ok


	a		https://x.com/Alfa_System				1	ok
								ok


	a		promocje/dwupak				1	ok
								ok


	a		promocje/internet_symetryk				1	ok
								ok


	img	src	https://alfa-system.pl/assets/images/alfasystem/logo-alfa.png		200		1	ok
	alt: Logo Alfa-System			image/png X-Content-Type-Options nosniff found				ok
				No Compression - 9740 Bytes

	img	src	https://alfa-system.pl/assets/images/alfasystem/logo-alfa.png		200		1	ok
	alt: Logo Alfa-System - powrót do strony głównej			image/png X-Content-Type-Options nosniff found				ok
				No Compression - 9740 Bytes

	link	apple-touch-icon	https://alfa-system.pl/assets/images/pwa/icon-192x192.png		200		1	ok
				image/png X-Content-Type-Options nosniff found				ok
				No Compression - 6342 Bytes

	link	apple-touch-icon	https://alfa-system.pl/assets/images/pwa/icon-512x512.png		200		1	ok
				image/png X-Content-Type-Options nosniff found				ok
				No Compression - 20544 Bytes

	link	canonical	https://alfa-system.pl//				1	ok
								ok


	link	icon	https://alfa-system.pl/assets/images/pwa/icon-192x192.png		200		1	ok
				image/png X-Content-Type-Options nosniff found				ok
				No Compression - 6342 Bytes

	link	icon	https://alfa-system.pl/assets/images/pwa/icon-512x512.png		200		1	ok
				image/png X-Content-Type-Options nosniff found				ok
				No Compression - 20544 Bytes

	link	manifest	https://alfa-system.pl/pwa/manifest.json				1	ok
								ok


	link	preload	https://alfa-system.pl/assets/css/homepage.bundle.css?v=1782200155		200		1	ok
				text/css X-Content-Type-Options nosniff found				ok
				Compression (gzip): 45228/285628 Bytes

	link	preload	https://alfa-system.pl/assets/css/non-critical.css?v=1782121561		200		1	ok
				text/css X-Content-Type-Options nosniff found				ok
				Compression (gzip): 1831/5839 Bytes

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				image/x-icon X-Content-Type-Options nosniff found		This combination of Media Type "image" and MediaSubType "x-icon" was never defined. Use "image/vnd.microsoft.icon" instead. See https://www.iana.org/assignments/media-types/media-types.xhtml		Problems with Content-Type - Header - see details
				Compression (gzip): 104/1406 Bytes

	link	stylesheet	https://alfa-system.pl/assets/bootstrap-icons/bootstrap-icons.css?v=1782121561		200		1	ok
				text/css X-Content-Type-Options nosniff found				ok
				Compression (gzip): 15371/99556 Bytes
	local SRI possible, possible hash-values: sha256-AEMichyFVzMXWbxt2qy7aJsPBxXWiK7IK9BW0tW1zDs= sha384-Bk5cbLkZQ5raZ0+H2/+VbfYx3WpvxvQK4zqXZr7sYODuaX7bKXoSOnipQxkaS8sv sha512-vWHsp0PuTxwRMLtGTnbS7PDNtI7yFmmiFq24hjcqpup/KK7ixxWdXwRmerG9gu7peaSRIVxpFcfBSVrGzWcF4w== <link rel="stylesheet" href="https://alfa-system.pl/assets/bootstrap-icons/bootstrap-icons.css?v=1782121561" crossorigin="anonymous" integrity="sha256-AEMichyFVzMXWbxt2qy7aJsPBxXWiK7IK9BW0tW1zDs=" />

	link	stylesheet	https://alfa-system.pl/assets/css/homepage.bundle.css?v=1782200155		200		1	ok
				text/css X-Content-Type-Options nosniff found				ok
				Compression (gzip): 45228/285628 Bytes
	local SRI possible, possible hash-values: sha256-MyWsY12s29mmn0XKcj53WGQCUOVV41P57B6jT6I7W30= sha384-YRK7G/mSwLAqNjJudwBB40ZH3HWXKTPCCkXASDGwVun1XkMZAmAAuS/YKN3t5Una sha512-QFk0MdrqawP4uHEzeOF+UdZuz2kjaC16j+D5xzHYEPkcXvmHsHdA/zZu2nCE1atT44WUQL1mcdaYQLpBQ0l5oA== <link rel="stylesheet" href="https://alfa-system.pl/assets/css/homepage.bundle.css?v=1782200155" crossorigin="anonymous" integrity="sha256-MyWsY12s29mmn0XKcj53WGQCUOVV41P57B6jT6I7W30=" />

	link	stylesheet	https://alfa-system.pl/assets/css/non-critical.css?v=1782121561		200		1	ok
				text/css X-Content-Type-Options nosniff found				ok
				Compression (gzip): 1831/5839 Bytes
	local SRI possible, possible hash-values: sha256-yvJx3Fyh4JAS0hHNxEhYbhbUTrzzpi+gG7qTUvFppT8= sha384-GJoV9Vo7HaTgM/Qh1ZF11mT4VftHZQwEey1vRIRIBHqgPUuaM2d1rTbfmuSlZmk0 sha512-1sR/zg7lJuh5bvXS2QUMXXnRhAvqJd0eBH1mR53zUvEtJ3BuwFb9mfKY6d7x9e2S3Oj1dUrDTVFRVb1PiPcZIQ== <link rel="stylesheet" href="https://alfa-system.pl/assets/css/non-critical.css?v=1782121561" crossorigin="anonymous" integrity="sha256-yvJx3Fyh4JAS0hHNxEhYbhbUTrzzpi+gG7qTUvFppT8=" />

	link	stylesheet	https://alfa-system.pl/assets/font-awesome/css/all.min.css?v=1734384716		200		1	ok
				text/css X-Content-Type-Options nosniff found				ok
				Compression (gzip): 22466/73890 Bytes
	local SRI possible, possible hash-values: sha256-dABdfBfUoC8vJUBOwGVdm8L9qlMWaHTIfXt+7GnZCIo= sha384-nRgPTkuX86pH8yjPJUAFuASXQSSl2/bBUiNV47vSYpKFxHJhbcrGnmlYpYJMeD7a sha512-Evv84Mr4kqVGRNSgIGL/F/aIDqQb7xQ2vcrdIwxfjThSH8CSR7PBEakCr51Ck+w+/U6swU2Im1vVX0SVk9ABhg== <link rel="stylesheet" href="https://alfa-system.pl/assets/font-awesome/css/all.min.css?v=1734384716" crossorigin="anonymous" integrity="sha256-dABdfBfUoC8vJUBOwGVdm8L9qlMWaHTIfXt+7GnZCIo=" />

	link	stylesheet	https://cdn.jsdelivr.net/npm/bootstrap-icons@1.13.1/font/bootstrap-icons.css		200		1	ok
				text/css; charset=utf-8 X-Content-Type-Options nosniff found				ok
	Cache-Control: public, max-age=31536000, s-maxage=31536000, immutable - with long duration found.			Compression (br): 13832/99556 Bytes
	ETag: W/"184e4-ptHboTbR5gcHjbMAMHDqs0tR7FA"
	Server-Header Access-Control-Allow-Origin: *			Cross-Origin Resource Sharing (CORS) supported
	missing crossorigin=anonymous\|use-credentials and integrity - attribute, possible hash-values: sha256-AEMichyFVzMXWbxt2qy7aJsPBxXWiK7IK9BW0tW1zDs= sha384-Bk5cbLkZQ5raZ0+H2/+VbfYx3WpvxvQK4zqXZr7sYODuaX7bKXoSOnipQxkaS8sv sha512-vWHsp0PuTxwRMLtGTnbS7PDNtI7yFmmiFq24hjcqpup/KK7ixxWdXwRmerG9gu7peaSRIVxpFcfBSVrGzWcF4w== <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap-icons@1.13.1/font/bootstrap-icons.css" crossorigin="anonymous" integrity="sha256-AEMichyFVzMXWbxt2qy7aJsPBxXWiK7IK9BW0tW1zDs=" />

	meta	charset	UTF-8				1	ok
								ok


	meta	og:description	Lokalny operator telekomunikacyjny. W ofercie dostęp do Internetu, telefonia VoIP, cyfrowy monitoring IP oraz telewizja kablowa Jambox.				1	ok
								ok


	meta	og:locale	pl_PL				1	ok
								ok


	meta	og:title	Alfa-System – Internet, Telefon, Telewizja i Monitoring w Knurowie				1	ok
								ok


	meta	og:type	website				1	ok
								ok


	meta	og:url	https://alfa-system.pl//		200		1	ok
				text/html; charset=UTF-8 X-Content-Type-Options nosniff found				ok
				9156 Bytes

	meta	X-UA-Compatible	IE=edge				1	ok
								ok


	meta	apple-mobile-web-app-capable	yes				1	ok
								ok


	meta	apple-mobile-web-app-status-bar-style	default				1	ok
								ok


	meta	apple-mobile-web-app-title	Alfa-System				1	ok
								ok


	meta	description	Lokalny operator telekomunikacyjny. W ofercie dostęp do Internetu, telefonia VoIP, cyfrowy monitoring IP oraz telewizja kablowa Jambox.				1	ok
								ok


	meta	format-detection	telephone=no				1	ok
								ok


	meta	mobile-web-app-capable	yes				1	ok
								ok


	meta	theme-color	#1e3a8a				1	ok
								ok


	meta	viewport	width=device-width, initial-scale=1.0				1	ok
								ok


	picture
		• source		type: image/jpeg			1	ok
								ok

		srcset	https://alfa-system.pl/assets/images/slider/alfa-system-500-700-900.webp				1	ok
								ok
							2	ok
								ok

		https://alfa-system.pl/assets/images/slider/alfa-system-500-700-900.webp			200		2	ok
				image/webp X-Content-Type-Options nosniff found				ok
		Cache-Control: public, max-age=31536000, immutable with long duration found.		No Compression - 283716 Bytes
		• img
			https://alfa-system.pl/assets/images/slider/alfa-system-500-700-900.webp		200		1	ok
	alt: Promocja Alfa-System: Internet symetryczny - szybki upload i download			image/webp X-Content-Type-Options nosniff found				ok
		Cache-Control: public, max-age=31536000, immutable with long duration found.		No Compression - 283716 Bytes

	picture
		• source		type: image/jpeg			1	ok
								ok

		srcset	https://alfa-system.pl/assets/images/slider/alfa-system-promocja-2-1.webp				1	ok
								ok
							2	ok
								ok

		https://alfa-system.pl/assets/images/slider/alfa-system-promocja-2-1.webp			200		2	ok
				image/webp X-Content-Type-Options nosniff found				ok
		Cache-Control: public, max-age=31536000, immutable with long duration found.		No Compression - 319478 Bytes
		• img
			https://alfa-system.pl/assets/images/slider/alfa-system-promocja-2-1.webp		200		1	ok
	alt: Promocja Alfa-System			image/webp X-Content-Type-Options nosniff found				ok
		Cache-Control: public, max-age=31536000, immutable with long duration found.		No Compression - 319478 Bytes

	picture
		• source		type: image/jpeg			1	ok
								ok

		srcset	https://alfa-system.pl/assets/images/slider/promocja-dwupak.webp				1	ok
								ok
							2	ok
								ok

		https://alfa-system.pl/assets/images/slider/promocja-dwupak.webp			200		2	ok
				image/webp X-Content-Type-Options nosniff found				ok
		Cache-Control: public, max-age=31536000, immutable with long duration found.		No Compression - 61774 Bytes
		• img
			https://alfa-system.pl/assets/images/slider/promocja-dwupak.webp		200		1	ok
	alt: Promocja Alfa-System: Dwie usługi w cenie jednej - Internet, Telewizja lub Telefon			image/webp X-Content-Type-Options nosniff found				ok
		Cache-Control: public, max-age=31536000, immutable with long duration found.		No Compression - 61774 Bytes

	picture
		• source		type: image/jpeg			1	ok
								ok

		srcset	https://alfa-system.pl/assets/images/slider/nowa-promocja-canal-plus.webp				1	ok
								ok
							2	ok
								ok

		https://alfa-system.pl/assets/images/slider/nowa-promocja-canal-plus.webp			200		2	ok
				image/webp X-Content-Type-Options nosniff found				ok
		Cache-Control: public, max-age=31536000, immutable with long duration found.		No Compression - 69756 Bytes
		• img
			https://alfa-system.pl/assets/images/slider/nowa-promocja-canal-plus.webp		200		1	ok
	alt: Promocja Alfa-System: Pakiet Canal+ - najlepsze filmy i seriale			image/webp X-Content-Type-Options nosniff found				ok
		Cache-Control: public, max-age=31536000, immutable with long duration found.		No Compression - 69756 Bytes

	picture
		• source		type: image/jpeg			1	ok
								ok

		srcset	https://alfa-system.pl/assets/images/slider/promocja-eleven.webp				1	ok
								ok
							2	ok
								ok

		https://alfa-system.pl/assets/images/slider/promocja-eleven.webp			200		2	ok
				image/webp X-Content-Type-Options nosniff found				ok
		Cache-Control: public, max-age=31536000, immutable with long duration found.		No Compression - 102228 Bytes
		• img
			https://alfa-system.pl/assets/images/slider/promocja-eleven.webp		200		1	ok
	alt: Promocja Alfa-System: Pakiet Eleven HD - sport i rozrywka			image/webp X-Content-Type-Options nosniff found				ok
		Cache-Control: public, max-age=31536000, immutable with long duration found.		No Compression - 102228 Bytes

	picture
		• source		type: image/jpeg			1	ok
								ok

		srcset	https://alfa-system.pl/assets/images/slider/promocja-hbo.webp				1	ok
								ok
							2	ok
								ok

		https://alfa-system.pl/assets/images/slider/promocja-hbo.webp			200		2	ok
				image/webp X-Content-Type-Options nosniff found				ok
		Cache-Control: public, max-age=31536000, immutable with long duration found.		No Compression - 101874 Bytes
		• img
			https://alfa-system.pl/assets/images/slider/promocja-hbo.webp		200		1	ok
	alt: Promocja Alfa-System: Pakiet HBO HD - premiery filmowe i seriale			image/webp X-Content-Type-Options nosniff found				ok
		Cache-Control: public, max-age=31536000, immutable with long duration found.		No Compression - 101874 Bytes

	script	src	https://alfa-system.pl/assets/bootstrap/js/bootstrap.bundle.min.js?v=1756173662		200		1	Problems with Content-Type - Header - see details
	Missing defer / async attribute.			application/javascript X-Content-Type-Options nosniff found		This Combination of MediaType "application" and MediaSubType "javascript" is obsolete. Don't use it. See https://www.iana.org/assignments/media-types/media-types.xhtml to find a correct Combination. Use "text/javascript" instead.		Problems with Content-Type - Header - see details
				Compression (gzip): 24825/80496 Bytes
	local SRI possible, possible hash-values: sha256-5P1JGBOIxI7FBAvT/mb1fCnI5n/NhQKzNUuW7Hq0fMc= sha384-FKyoEForCGlyvwx9Hj09JcYn3nv7wiPVlz7YYwJrWVcXK/BmnVDxM+D2scQbITxI sha512-HvOjJrdwNpDbkGJIG2ZNqDlVqMo77qbs4Me4cah0HoDrfhrbA+8SBlZn1KrvAQw7cILLPFJvdwIgphzQmMm+Pw== <script src="https://alfa-system.pl/assets/bootstrap/js/bootstrap.bundle.min.js?v=1756173662" crossorigin="anonymous" integrity="sha256-5P1JGBOIxI7FBAvT/mb1fCnI5n/NhQKzNUuW7Hq0fMc=" />

	script	src	https://alfa-system.pl/assets/js/jquery.slim.min.js?v=1695347026		200		1	Problems with Content-Type - Header - see details
	Missing defer / async attribute.			application/javascript X-Content-Type-Options nosniff found		This Combination of MediaType "application" and MediaSubType "javascript" is obsolete. Don't use it. See https://www.iana.org/assignments/media-types/media-types.xhtml to find a correct Combination. Use "text/javascript" instead.		Problems with Content-Type - Header - see details
				Compression (gzip): 25055/70264 Bytes
	local SRI possible, possible hash-values: sha256-kmHvs0B+OpCW5GVHUNjv9rOmY0IvSIRcf7zGUDTDQM8= sha384-5AkRS45j4ukf+JbWAfHL8P4onPA9p0KwwP7pUdjSQA3ss9edbJUJc/XcYAiheSSz sha512-sNylduh9fqpYUK5OYXWcBleGzbZInWj8yCJAU57r1dpSK9tP2ghf/SRYCMj+KsslFkCOt3TvJrX2AV/Gc3wOqA== <script src="https://alfa-system.pl/assets/js/jquery.slim.min.js?v=1695347026" crossorigin="anonymous" integrity="sha256-kmHvs0B+OpCW5GVHUNjv9rOmY0IvSIRcf7zGUDTDQM8=" />

	script	src	https://alfa-system.pl/assets/js/site-core.js?v=1782200155		200		1	Problems with Content-Type - Header - see details
	Missing defer / async attribute.			application/javascript X-Content-Type-Options nosniff found		This Combination of MediaType "application" and MediaSubType "javascript" is obsolete. Don't use it. See https://www.iana.org/assignments/media-types/media-types.xhtml to find a correct Combination. Use "text/javascript" instead.		Problems with Content-Type - Header - see details
				Compression (gzip): 1208/6154 Bytes
	local SRI possible, possible hash-values: sha256-Z8JFDKMg72uNZKYN43tgiHROxA0czvi2SX7/H/9Gh+g= sha384-hIRImV5qmuMuwmk6Xpdk3R34a6ncVupx+VUsBI9PZ0baRmfkwpQvgUlpJan0PcOO sha512-yu/fs32n7QCzDYTw2WVe3wVNc+WVo0EWr6LNTPAzxw2n0vFK+Xl13jwaZtBNFxkQh3xaPOcG2E8D5SMJ6IKu0A== <script src="https://alfa-system.pl/assets/js/site-core.js?v=1782200155" crossorigin="anonymous" integrity="sha256-Z8JFDKMg72uNZKYN43tgiHROxA0czvi2SX7/H/9Gh+g=" />

12. Html-Parsing via https://validator.w3.org/nu/

Url used (first standard-https-result with http status 200): https://alfa-system.pl/

Summary
	Good: No non-document-errors
	0 errors
	0 warnings
	The NU-Validator answered with a http status code 403, parsing not possible. May be a temporary problem, may be a problem with your html code.

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: dns.alfa-system.pl, dns2.alfa-system.pl

QNr.	Domain	Type	NS used
1	pl	NS	m.root-servers.net (2001:dc3::35)
	Answer: a-dns.pl, b-dns.pl, d-dns.pl, f-dns.pl, h-dns.pl, j-dns.pl
2	dns.alfa-system.pl: 2a0f:1700:1::452, 91.231.70.37	NS	a-dns.pl (2001:7f9::53)
	Answer: dns2.alfa-system.pl 2a0f:1700:1::454, 91.231.70.58

14. CAA - Entries

Domainname	flag	Name	Value	∑ Queries
www.alfa-system.pl	5	issue	certum.pl	1
	5	issue	letsencrypt.org	1
	5	iodef	mailto:admin@alfa-system.pl	1
alfa-system.pl	5	issue	certum.pl	1
	5	issue	letsencrypt.org	1
	5	iodef	mailto:admin@alfa-system.pl	1
pl	0		no CAA entry found	1

15. TXT - Entries

Domainname	TXT Entry	Status	∑ Queries
alfa-system.pl	a9cce21c94f6df8f022e7574f3dc34522d17786f379e3a065d5dd0eb75048a5	ok	1
alfa-system.pl	google-site-verification=fiQgZcQ7LMFYHBsyMTMTJLoidnRuidHO9vvCTHOnysQ	ok	1
alfa-system.pl	google-site-verification=GuuCVq6tlB8bSvSVE0MpGp01qENHXzU-G-f7eRNsoHE	ok	1
alfa-system.pl	mojecertpl-site-verification-iQVFUyLrUpdnvZyiaq6zMHQX5j2LOwa3	ok	1
alfa-system.pl	security_contact=mailto:admin@alfa-system.pl	ok	1
alfa-system.pl	v=spf1 mx ip4:91.231.70.0/26 ip6:2a0f:1700:1::400/120 ~all	ok	1
alfa-system.pl	yahoo-verification-key=BWghRcJbevVm89twByyDUQTZGFOvnHXwRlHE+CPkUn4=	ok	1
www.alfa-system.pl	a9cce21c94f6df8f022e7574f3dc34522d17786f379e3a065d5dd0eb75048a5	ok	1
www.alfa-system.pl	google-site-verification=fiQgZcQ7LMFYHBsyMTMTJLoidnRuidHO9vvCTHOnysQ	ok	1
www.alfa-system.pl	google-site-verification=GuuCVq6tlB8bSvSVE0MpGp01qENHXzU-G-f7eRNsoHE	ok	1
www.alfa-system.pl	mojecertpl-site-verification-iQVFUyLrUpdnvZyiaq6zMHQX5j2LOwa3	ok	1
www.alfa-system.pl	security_contact=mailto:admin@alfa-system.pl	ok	1
www.alfa-system.pl	v=spf1 mx ip4:91.231.70.0/26 ip6:2a0f:1700:1::400/120 ~all	ok	1
www.alfa-system.pl	yahoo-verification-key=BWghRcJbevVm89twByyDUQTZGFOvnHXwRlHE+CPkUn4=	ok	1
_acme-challenge.alfa-system.pl		Name Error - The domain name does not exist	1
_acme-challenge.www.alfa-system.pl		Name Error - The domain name does not exist	1
_acme-challenge.alfa-system.pl.alfa-system.pl		Name Error - The domain name does not exist	1
_acme-challenge.www.alfa-system.pl.alfa-system.pl		Name Error - The domain name does not exist	1
_acme-challenge.www.alfa-system.pl.www.alfa-system.pl		Name Error - The domain name does not exist	1

16. DomainService - Entries

Type		Domain	Pref	Value	DNS-error	num Answers	Status	Description
MX		alfa-system.pl	5	smtp.alfa-system.pl	0	2	ok
	A			91.231.70.41	0	1	ok
	CNAME				0	0	ok
MX		alfa-system.pl	15	mx-backup.alfa-system.pl	0	2	ok
	A			91.231.70.60	0	1	ok
	CNAME						ok
	CNAME				0	0	ok
_mta-sts	TXT	_mta-sts.alfa-system.pl		v=STSv1; id=20250103;			ok
	A	mta-sts.alfa-system.pl		91.231.70.31			ok
	mta-sts.txt file	Content of https://mta-sts.alfa-system.pl/.well-known/mta-sts.txt - see RFC 8461			text/plain		ok
				version: STSv1			ok
				mode: enforce			ok
				mx: smtp.alfa-system.pl			ok
				mx: mx-backup.alfa-system.pl			ok
				max_age: 86400			ok
	AAAA	mta-sts.alfa-system.pl		2a0f:1700:1::501			ok
	mta-sts.txt file	Content of https://mta-sts.alfa-system.pl/.well-known/mta-sts.txt - see RFC 8461			text/plain		ok
				version: STSv1			ok
				mode: enforce			ok
				mx: smtp.alfa-system.pl			ok
				mx: mx-backup.alfa-system.pl			ok
				max_age: 86400			ok
SMTP-TLS Reporting	TXT	_smtp._tls.alfa-system.pl		v=TLSRPTv1; rua=mailto:474b82e4@in.mailhardener.com,mailto:tlsrpt@alfa-system.pl;			ok
SPF	TXT	alfa-system.pl		v=spf1 mx ip4:91.231.70.0/26 ip6:2a0f:1700:1::400/120 ~all			ok
	MX	alfa-system.pl		smtp.alfa-system.pl			ok
	MX-A	smtp.alfa-system.pl		91.231.70.41			ok
	MX	alfa-system.pl		mx-backup.alfa-system.pl			ok
	MX-A	mx-backup.alfa-system.pl		91.231.70.60			ok
_dmarc	TXT	_dmarc.alfa-system.pl		v=DMARC1; p=quarantine; rua=mailto:474b82e4@in.mailhardener.com; adkim=r; aspf=r; pct=100; fo=1; ruf=mailto:474b82e4@in.mailhardener.com			ok
	TXT	alfa-system.pl._report._dmarc.in.mailhardener.com		mailto:474b82e4@in.mailhardener.com			ok	Mail domain unequal current domain. Check required, if there is a confirming _report._dmarc-Record. See RFC 7489, 7.1.
	TXT	alfa-system.pl._report._dmarc.in.mailhardener.com		v=DMARC1;			ok	Confirmed. Sending reports to external domain is allowed.

17. Cipher Suites

Summary
Domain	IP	Port	num Ciphers	time	Std.Protocol	Forward Secrecy
alfa-system.pl	91.231.70.31	443	3 Ciphers	32.22 sec		0 without, 3 FS	100.00 %
alfa-system.pl	2a0f:1700:1::501	443	3 Ciphers	26.99 sec		0 without, 3 FS	100.00 %
www.alfa-system.pl	91.231.70.31	443	3 Ciphers	31.87 sec		0 without, 3 FS	100.00 %
www.alfa-system.pl	2a0f:1700:1::501	443	3 Ciphers	26.68 sec		0 without, 3 FS	100.00 %
Complete		4	12 Ciphers 3.00 Ciphers/Check	117.76 sec	29.44 sec/Check	0 without, 12 FS	100.00 %

Details
Domain	IP	Port	Cipher (OpenSsl / IANA)
alfa-system.pl	91.231.70.31	443	ECDHE-ECDSA-CHACHA20-POLY1305		(Recommended)	TLSv1.2	0xCC,0xA9	FS
3 Ciphers, 32.22 sec			TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
			ECDH		ECDSA	CHACHA20/POLY1305(256)	AEAD
			ECDHE-ECDSA-AES256-GCM-SHA384		(Recommended)	TLSv1.2	0xC0,0x2C	FS
			TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
			ECDH		ECDSA	AESGCM(256)	AEAD
			ECDHE-ECDSA-AES128-GCM-SHA256		(Recommended)	TLSv1.2	0xC0,0x2B	FS
			TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
			ECDH		ECDSA	AESGCM(128)	AEAD
	2a0f:1700:1::501	443	ECDHE-ECDSA-CHACHA20-POLY1305		(Recommended)	TLSv1.2	0xCC,0xA9	FS
3 Ciphers, 26.99 sec			TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
			ECDH		ECDSA	CHACHA20/POLY1305(256)	AEAD
			ECDHE-ECDSA-AES256-GCM-SHA384		(Recommended)	TLSv1.2	0xC0,0x2C	FS
			TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
			ECDH		ECDSA	AESGCM(256)	AEAD
			ECDHE-ECDSA-AES128-GCM-SHA256		(Recommended)	TLSv1.2	0xC0,0x2B	FS
			TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
			ECDH		ECDSA	AESGCM(128)	AEAD
www.alfa-system.pl	91.231.70.31	443	ECDHE-ECDSA-CHACHA20-POLY1305		(Recommended)	TLSv1.2	0xCC,0xA9	FS
3 Ciphers, 31.87 sec			TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
			ECDH		ECDSA	CHACHA20/POLY1305(256)	AEAD
			ECDHE-ECDSA-AES256-GCM-SHA384		(Recommended)	TLSv1.2	0xC0,0x2C	FS
			TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
			ECDH		ECDSA	AESGCM(256)	AEAD
			ECDHE-ECDSA-AES128-GCM-SHA256		(Recommended)	TLSv1.2	0xC0,0x2B	FS
			TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
			ECDH		ECDSA	AESGCM(128)	AEAD
	2a0f:1700:1::501	443	ECDHE-ECDSA-CHACHA20-POLY1305		(Recommended)	TLSv1.2	0xCC,0xA9	FS
3 Ciphers, 26.68 sec			TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
			ECDH		ECDSA	CHACHA20/POLY1305(256)	AEAD
			ECDHE-ECDSA-AES256-GCM-SHA384		(Recommended)	TLSv1.2	0xC0,0x2C	FS
			TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
			ECDH		ECDSA	AESGCM(256)	AEAD
			ECDHE-ECDSA-AES128-GCM-SHA256		(Recommended)	TLSv1.2	0xC0,0x2B	FS
			TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
			ECDH		ECDSA	AESGCM(128)	AEAD

18. Portchecks

No open Ports <> 80 / 443 found, so no additional Ports checked.

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