Check DNS, Urls + Redirects, Certificates and Content of your Website

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Shortcuts: 1. IP-Addresses | 2. DNSSEC | 3. Name Servers | 4. SOA-Entries | 5. Screenshots | 6. Url-Checks | 7. Comments | 8. Connections | 9. Certificates | 10. CT-Logs | 11. Html-Content | 12. Html-Parsing | 13. NameServer-IPAddresses | 14. CAA | 15. TXT | 16. DomainServiceEntries | 17. Cipher Suites | 18. Portchecks |

 

A

 

Top config

 

Checked:
06.12.2023 15:33:48

 

Older results

 

N - 06.12.2023 15:15:54

 

1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
bzyku.alfa-system.pl
A
91.231.70.45
Knurow/Silesia/Poland (PL) - ALFA-SYSTEM
Hostname: hosting3.alfa-system.pl
yes
1
0

AAAA

yes


www.bzyku.alfa-system.pl

Name Error
yes
1
0
*.alfa-system.pl
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes


*.bzyku.alfa-system.pl
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
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






2 DNSKEY RR found






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






Public Key with Algorithm 8, KeyTag 46780, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 21.12.2023, 00:00:00 +, Signature-Inception: 30.11.2023, 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
2 DS RR in the parent zone found






DS with Algorithm 8, KeyTag 59899, DigestType 2 and Digest kUuKm9ro76awMj/39+uQ2phf5j6uDhy2FM9tWxFvnIA=






DS with Algorithm 8, KeyTag 48559, DigestType 2 and Digest bH2UxvJVVu6xgO9ePpI38iR1l/KNyo1/pjs6GkW3mk8=






1 RRSIG RR to validate DS RR found






RRSIG-Owner pl., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 19.12.2023, 05:00:00 +, Signature-Inception: 06.12.2023, 04:00:00 +, KeyTag 46780, Signer-Name: (root)






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 46780 used to validate the DS RRSet in the parent zone






4 DNSKEY RR found






Public Key with Algorithm 8, KeyTag 10458, Flags 256






Public Key with Algorithm 8, KeyTag 42684, Flags 256






Public Key with Algorithm 8, KeyTag 48559, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 8, KeyTag 59899, Flags 257 (SEP = Secure Entry Point)






2 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner pl., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 02.01.2024, 12:00:00 +, Signature-Inception: 03.12.2023, 12:00:00 +, KeyTag 48559, Signer-Name: pl






RRSIG-Owner pl., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 02.01.2024, 12:00:00 +, Signature-Inception: 03.12.2023, 12:00:00 +, KeyTag 59899, Signer-Name: pl






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 48559 used to validate the DNSKEY RRSet






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 59899 used to validate the DNSKEY RRSet






• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 48559, DigestType 2 and Digest "bH2UxvJVVu6xgO9ePpI38iR1l/KNyo1/pjs6GkW3mk8=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone






• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 59899, DigestType 2 and Digest "kUuKm9ro76awMj/39+uQ2phf5j6uDhy2FM9tWxFvnIA=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: alfa-system.pl

alfa-system.pl
1 DS RR in the parent zone found






DS with Algorithm 7, KeyTag 20535, DigestType 2 and Digest Jm36MiQreOfzcNizUduqOYZ24Ln+reL26Gg6AguJhOM=






1 RRSIG RR to validate DS RR found






RRSIG-Owner alfa-system.pl., Algorithm: 8, 2 Labels, original TTL: 86400 sec, Signature-expiration: 02.01.2024, 12:00:00 +, Signature-Inception: 03.12.2023, 12:00:00 +, KeyTag 42684, Signer-Name: pl






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 42684 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






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






Public Key with Algorithm 7, KeyTag 31979, Flags 256






2 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner alfa-system.pl., Algorithm: 7, 2 Labels, original TTL: 360 sec, Signature-expiration: 04.03.2024, 00:00:00 +, Signature-Inception: 05.12.2023, 08:07:37 +, KeyTag 20535, Signer-Name: alfa-system.pl






RRSIG-Owner alfa-system.pl., Algorithm: 7, 2 Labels, original TTL: 360 sec, Signature-expiration: 04.03.2024, 00:00:00 +, Signature-Inception: 05.12.2023, 08:07:37 +, KeyTag 31979, Signer-Name: alfa-system.pl






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






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






• Status: Valid Chain of trust. Parent-DS with Algorithm 7, KeyTag 20535, DigestType 2 and Digest "Jm36MiQreOfzcNizUduqOYZ24Ln+reL26Gg6AguJhOM=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: bzyku.alfa-system.pl

bzyku.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 "ht6ctllsmu9qfv132m2jiq864u8bbje4" between the hashed NSEC3-owner "ht6ctllsmu9qfv132m2jiq864u8bbje4" and the hashed NextOwner "hvu85rlkkmsu2umd5juf6dvf0rut7dcb". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: A, RRSIG Validated: RRSIG-Owner ht6ctllsmu9qfv132m2jiq864u8bbje4.alfa-system.pl., Algorithm: 7, 3 Labels, original TTL: 43200 sec, Signature-expiration: 04.03.2024, 00:00:00 +, Signature-Inception: 05.12.2023, 08:07:37 +, KeyTag 31979, Signer-Name: alfa-system.pl






0 DNSKEY RR found












RRSIG Type 1 validates the A - Result: 91.231.70.45
Validated: RRSIG-Owner bzyku.alfa-system.pl., Algorithm: 7, 3 Labels, original TTL: 360 sec, Signature-expiration: 04.03.2024, 00:00:00 +, Signature-Inception: 05.12.2023, 08:07:37 +, KeyTag 31979, Signer-Name: alfa-system.pl






CNAME-Query sends a valid NSEC3 RR as result with the hashed query name "ht6ctllsmu9qfv132m2jiq864u8bbje4" equal the hashed NSEC3-owner "ht6ctllsmu9qfv132m2jiq864u8bbje4" and the hashed NextOwner "hvu85rlkkmsu2umd5juf6dvf0rut7dcb". 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, RRSIG Validated: RRSIG-Owner ht6ctllsmu9qfv132m2jiq864u8bbje4.alfa-system.pl., Algorithm: 7, 3 Labels, original TTL: 43200 sec, Signature-expiration: 04.03.2024, 00:00:00 +, Signature-Inception: 05.12.2023, 08:07:37 +, KeyTag 31979, Signer-Name: alfa-system.pl






Status: Good. NoData-Proof required and found.






TXT-Query sends a valid NSEC3 RR as result with the hashed query name "ht6ctllsmu9qfv132m2jiq864u8bbje4" equal the hashed NSEC3-owner "ht6ctllsmu9qfv132m2jiq864u8bbje4" and the hashed NextOwner "hvu85rlkkmsu2umd5juf6dvf0rut7dcb". So the zone confirmes the not-existence of that TXT RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, RRSIG Validated: RRSIG-Owner ht6ctllsmu9qfv132m2jiq864u8bbje4.alfa-system.pl., Algorithm: 7, 3 Labels, original TTL: 43200 sec, Signature-expiration: 04.03.2024, 00:00:00 +, Signature-Inception: 05.12.2023, 08:07:37 +, KeyTag 31979, Signer-Name: alfa-system.pl






Status: Good. NoData-Proof required and found.






AAAA-Query sends a valid NSEC3 RR as result with the hashed query name "ht6ctllsmu9qfv132m2jiq864u8bbje4" equal the hashed NSEC3-owner "ht6ctllsmu9qfv132m2jiq864u8bbje4" and the hashed NextOwner "hvu85rlkkmsu2umd5juf6dvf0rut7dcb". So the zone confirmes the not-existence of that AAAA RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, RRSIG Validated: RRSIG-Owner ht6ctllsmu9qfv132m2jiq864u8bbje4.alfa-system.pl., Algorithm: 7, 3 Labels, original TTL: 43200 sec, Signature-expiration: 04.03.2024, 00:00:00 +, Signature-Inception: 05.12.2023, 08:07:37 +, KeyTag 31979, Signer-Name: alfa-system.pl






Status: Good. NoData-Proof required and found.






TLSA-Query (_443._tcp.bzyku.alfa-system.pl) sends a valid NSEC3 RR as result with the hashed owner name "ht6ctllsmu9qfv132m2jiq864u8bbje4" (unhashed: bzyku.alfa-system.pl). So that's the Closest Encloser of the query name. TLSA-Query sends a valid NSEC3 RR as result and covers the hashed Next Closer Name "humtv5jeu9tfdbupk975flm214dh90ao" (unhashed: _tcp.bzyku.alfa-system.pl) with the owner "ht6ctllsmu9qfv132m2jiq864u8bbje4" and the NextOwner "hvu85rlkkmsu2umd5juf6dvf0rut7dcb". So that NSEC3 confirms the not-existence of the Next Closer Name.
Bitmap: A, RRSIG Validated: RRSIG-Owner ht6ctllsmu9qfv132m2jiq864u8bbje4.alfa-system.pl., Algorithm: 7, 3 Labels, original TTL: 43200 sec, Signature-expiration: 04.03.2024, 00:00:00 +, Signature-Inception: 05.12.2023, 08:07:37 +, KeyTag 31979, Signer-Name: alfa-system.pl






Status: Good. NXDomain-Proof required and found.






TLSA-Query sends a valid NSEC3 RR as result and covers the hashed Wildcard expansion of the ClosestEncloser "k7a94h3ntb9cdv018ibf79ajded8mk41" (unhashed: *.bzyku.alfa-system.pl) with the owner "k4m84jr591aq13k3b8f809pt28fs17l2" and the NextOwner "k8eumvdfl217tdr67u9tn0uhje89lf1a". So that NSEC3 confirms the not-existence of the Wildcard expansion.
Bitmap: A, RRSIG Validated: RRSIG-Owner k4m84jr591aq13k3b8f809pt28fs17l2.alfa-system.pl., Algorithm: 7, 3 Labels, original TTL: 43200 sec, Signature-expiration: 04.03.2024, 00:00:00 +, Signature-Inception: 05.12.2023, 08:07:37 +, KeyTag 31979, Signer-Name: alfa-system.pl






Status: Good. NXDomain-Proof required and found.






CAA-Query sends a valid NSEC3 RR as result with the hashed query name "ht6ctllsmu9qfv132m2jiq864u8bbje4" equal the hashed NSEC3-owner "ht6ctllsmu9qfv132m2jiq864u8bbje4" and the hashed NextOwner "hvu85rlkkmsu2umd5juf6dvf0rut7dcb". So the zone confirmes the not-existence of that CAA RR, but the existence of that query name (minimal one RR with that name exists).
Bitmap: A, RRSIG Validated: RRSIG-Owner ht6ctllsmu9qfv132m2jiq864u8bbje4.alfa-system.pl., Algorithm: 7, 3 Labels, original TTL: 43200 sec, Signature-expiration: 04.03.2024, 00:00:00 +, Signature-Inception: 05.12.2023, 08:07:37 +, KeyTag 31979, Signer-Name: alfa-system.pl






Status: Good. NoData-Proof required and found.



Zone: www.bzyku.alfa-system.pl

www.bzyku.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 "8t5oiurd2rn28rjl5usepsoc1olrie3l" between the hashed NSEC3-owner "8bbvvntjdig2k0h9de12k6t6mko359rm" and the hashed NextOwner "956oirs2mcqi2frlv4iksbud2gqo731v". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: A, RRSIG Validated: RRSIG-Owner 8bbvvntjdig2k0h9de12k6t6mko359rm.alfa-system.pl., Algorithm: 7, 3 Labels, original TTL: 43200 sec, Signature-expiration: 04.03.2024, 00:00:00 +, Signature-Inception: 05.12.2023, 08:07:37 +, KeyTag 31979, Signer-Name: alfa-system.pl






DS-Query in the parent zone sends valid NSEC3 RR with the Hash "ht6ctllsmu9qfv132m2jiq864u8bbje4" as Owner. That's the Hash of "bzyku.alfa-system.pl" with the NextHashedOwnerName "hvu85rlkkmsu2umd5juf6dvf0rut7dcb". So that domain name is the Closest Encloser of "www.bzyku.alfa-system.pl". Opt-Out: True.
Bitmap: A, RRSIG Validated: RRSIG-Owner ht6ctllsmu9qfv132m2jiq864u8bbje4.alfa-system.pl., Algorithm: 7, 3 Labels, original TTL: 43200 sec, Signature-expiration: 04.03.2024, 00:00:00 +, Signature-Inception: 05.12.2023, 08:07:37 +, KeyTag 31979, Signer-Name: alfa-system.pl






The ClosestEncloser says, that "*.bzyku.alfa-system.pl" with the Hash "k7a94h3ntb9cdv018ibf79ajded8mk41" is a possible Wildcard of the DS Query Name. But the DS-Query in the parent zone sends a valid NSEC3 RR With the owner "k4m84jr591aq13k3b8f809pt28fs17l2" and the Next Owner "k8eumvdfl217tdr67u9tn0uhje89lf1a", so the Hash of the wildcard is between these hashes. So that NSEC3 proves the Not-existence of that wildcard expansion. Opt-Out: True
Bitmap: A, RRSIG Validated: RRSIG-Owner k4m84jr591aq13k3b8f809pt28fs17l2.alfa-system.pl., Algorithm: 7, 3 Labels, original TTL: 43200 sec, Signature-expiration: 04.03.2024, 00:00:00 +, Signature-Inception: 05.12.2023, 08:07:37 +, KeyTag 31979, Signer-Name: alfa-system.pl

 

3. Name Servers

DomainNameserverNS-IP
www.bzyku.alfa-system.pl
•  dns.alfa-system.pl

bzyku.alfa-system.pl
•  dns.alfa-system.pl
91.231.70.37
Knurow/Silesia/Poland (PL) - ALFA-SYSTEM		•

• 
2001:470:71:391::2
Warsaw/Mazovia/Poland (PL) - Hurricane Electric LLC		•
alfa-system.pl
•  dns.alfa-system.pl
91.231.70.37
Knurow/Silesia/Poland (PL) - ALFA-SYSTEM		•

• 
2001:470:71:391::2
Warsaw/Mazovia/Poland (PL) - Hurricane Electric LLC		•

•  dns2.alfa-system.pl
91.231.70.58
Knurow/Silesia/Poland (PL) - ALFA-SYSTEM		•

• 
2001:470:71:69e::2
Warsaw/Mazovia/Poland (PL) - Hurricane Electric LLC		•

•  fns1.42.pl
79.98.145.34
Warsaw/Mazovia/Poland (PL) - Nitronet Sp. z o.o.		•

•  ns2.3s.pl
85.14.85.2
Gliwice/Silesia/Poland (PL) - 3S S.A. LIR		•

• 
2a00:13a0:3001::5353
Katowice/Silesia/Poland (PL) - TKPSA		•
pl
•  a-dns.pl / a-atm
•

•  b-dns.pl / b-nask
•

•  d-dns.pl / LHR1
•

•  f-dns.pl / tld-all-ffm1@53029
•

•  h-dns.pl / FRA2
•

•  j-dns.pl / 4.ams.pch
•

 

4. SOA-Entries


Domain:pl
Zone-Name:pl
Primary:a-dns.pl
Mail:dnsmaster.nask.pl
Serial:1701675611
Refresh:900
Retry:300
Expire:2592000
TTL:3600
num Entries:1


Domain:pl
Zone-Name:pl
Primary:a-dns.pl
Mail:dnsmaster.nask.pl
Serial:1701675612
Refresh:900
Retry:300
Expire:2592000
TTL:3600
num Entries:5


Domain:alfa-system.pl
Zone-Name:alfa-system.pl
Primary:dns.alfa-system.pl
Mail:admin.alfa-system.pl
Serial:2023161013
Refresh:14400
Retry:3600
Expire:1209600
TTL:43200
num Entries:7


Domain:bzyku.alfa-system.pl
Zone-Name:alfa-system.pl
Primary:dns.alfa-system.pl
Mail:admin.alfa-system.pl
Serial:2023161013
Refresh:14400
Retry:3600
Expire:1209600
TTL:43200
num Entries:2


Domain:www.bzyku.alfa-system.pl
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


5. Screenshots

Startaddress: https://bzyku.alfa-system.pl/, address used: https://bzyku.alfa-system.pl/, Screenshot created 2023-12-06 15:36:48 +00:0

 

Mobil (412px x 732px)

 

182 milliseconds

 

Screenshot mobile - https://bzyku.alfa-system.pl/
Mobil + Landscape (732px x 412px)

 

185 milliseconds

 

Screenshot mobile landscape - https://bzyku.alfa-system.pl/
Screen (1280px x 1680px)

 

329 milliseconds

 

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

 

Mobile- and other Chrome-Checks


widthheight
visual Viewport412716
content Size740716

 

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

 

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://bzyku.alfa-system.pl/
91.231.70.45
301
https://bzyku.alfa-system.pl/
Html is minified: 100.00 %
0.087
A
Date: Wed, 06 Dec 2023 14:34:46 GMT
Server: Apache
Location: https://bzyku.alfa-system.pl/
Content-Length: 237
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://bzyku.alfa-system.pl/
91.231.70.45
Inline-JavaScript (∑/total): 1/0 Inline-CSS (∑/total): 1/548		200

Html is minified: 181.13 %
Other inline scripts (∑/total): 0/0		3.500
A
small visible content (num chars: 471)
Do szanownego kolegi od szanownej koleżanki :P Kochany kolego tak mi brak serca twego Ty byku obolały oby Cię panny nie chciały ani panny ani wdowy ani stare krowy. Jesli chcesz mnie poznać przyjdz na ulicę Kopernia będę stała dupą do pomnika moje nazwisko ujrzysz na słupie Ty mnie masz w sercu ja Cię ma w dupie. Życie płynie Ci słodko jak woda ze śledzia niech Ci morda obrosnie jak dupa niedzwiedzia. Pozdrawia Cie koleżanka Kita pocałuj mnie w dupę i będziemy kwita.
Date: Wed, 06 Dec 2023 14:34:47 GMT
Server: Apache
Strict-Transport-Security: max-age=31536000
Last-Modified: Tue, 03 Nov 2015 14:05:39 GMT
ETag: "79d-523a36377f2c0-gzip"
Accept-Ranges: bytes
Vary: Accept-Encoding
Content-Encoding: gzip
X-XSS-Protection: 1; mode=block
X-Content-Type-Options: nosniff
Content-Length: 1021
Connection: close
Content-Type: text/html

• http://bzyku.alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
91.231.70.45
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0		301
https://bzyku.alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 100.00 %
Other inline scripts (∑/total): 0/0		0.080
A
Visible Content: Moved Permanently The document has moved here .
Date: Wed, 06 Dec 2023 14:34:51 GMT
Server: Apache
Location: https://bzyku.alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Length: 306
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://bzyku.alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0		404

Html is minified: 100.00 %
Other inline scripts (∑/total): 0/0		3.447
A
Not Found
Visible Content: Not Found The requested URL was not found on this server.
Date: Wed, 06 Dec 2023 14:34:57 GMT
Server: Apache
Strict-Transport-Security: max-age=31536000
Content-Length: 196
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://91.231.70.45/
91.231.70.45
200


3.494
N
Certificate error: RemoteCertificateNameMismatch
small visible content (num chars: 0)
Date: Wed, 06 Dec 2023 14:34:52 GMT
Server: Apache
Last-Modified: Fri, 04 Dec 2020 07:53:05 GMT
ETag: "0-5b59ec43d5c32"
Accept-Ranges: bytes
Content-Length: 0
Connection: close
Content-Type: text/html

 

7. Comments


1. General Results, most used to calculate the result

Aname "bzyku.alfa-system.pl" is subdomain, 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: 1643 (complete: 231048)
AGood: All ip addresses are public addresses
Warning: Only one ip address found: bzyku.alfa-system.pl has only one ip address.
Warning: No ipv6 address found. Ipv6 is the future with a lot of new features. So every domain name should have an ipv6 address. See https://en.wikipedia.org/wiki/IPv6: bzyku.alfa-system.pl has no ipv6 address.
AGood: No asked Authoritative Name Server had a timeout
ADNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
AGood: destination is https
AGood - only one version with Http-Status 200
AGood: one preferred version: non-www is preferred
AGood: No cookie sent via http.
HSTS-Preload-Status: unknown. Domain never included in the Preload-list. Check https://hstspreload.org/ to learn some basics about the Google-Preload-List.
AGood: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):1 complete Content-Type - header (3 urls)
https://bzyku.alfa-system.pl/ 91.231.70.45


Url with incomplete Content-Type - header - missing charset
https://91.231.70.45/ 91.231.70.45


Url with incomplete Content-Type - header - missing charset
Ahttp://bzyku.alfa-system.pl/ 91.231.70.45
301
https://bzyku.alfa-system.pl/
Correct redirect http - https with the same domain name
Nhttps://91.231.70.45/ 91.231.70.45
200

Error - Certificate isn't trusted, RemoteCertificateNameMismatch
Info: Checking all ip addresses of that domain without sending the hostname only one certificate found. Checking all ip addresses and sending the hostname only one certificate found. Both certificates are different. So that domain requires Server Name Indication (SNI), so the server is able to select the correct certificate.: Domain bzyku.alfa-system.pl, 1 ip addresses.
BNo _mta-sts TXT record found (mta-sts: Mail Transfer Agent Strict Transport Security - see RFC 8461). Read the result of server-daten.de (Url-Checks, Comments, Connections and DomainServiceRecords) to see a complete definition. Domainname: _mta-sts.bzyku.alfa-system.pl

2. Header-Checks

Abzyku.alfa-system.pl 91.231.70.45
X-Content-Type-Options
Ok: Header without syntax errors found: nosniff
A
X-Xss-Protection
Ok: Header without syntax errors found: 1; mode=block
B

Info: Header is deprecated. May not longer work in modern browsers. 1; mode=block
Fbzyku.alfa-system.pl 91.231.70.45
Content-Security-Policy
Critical: Missing Header:
Fbzyku.alfa-system.pl 91.231.70.45
Referrer-Policy
Critical: Missing Header:
Fbzyku.alfa-system.pl 91.231.70.45
Permissions-Policy
Critical: Missing Header:

3. DNS- and NameServer - Checks

AInfo:: 2 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 4 Name Servers.
AInfo:: 2 Queries complete, 2 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
AGood: 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 (2001:470:71:391::2, 91.231.70.37), dns2.alfa-system.pl (2001:470:71:69e::2, 91.231.70.58), fns1.42.pl (79.98.145.34), ns2.3s.pl (85.14.85.2)
AGood (1 - 3.0):: An average of 0.5 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 4 different Name Servers found: dns.alfa-system.pl, dns2.alfa-system.pl, fns1.42.pl, ns2.3s.pl, 4 Name Servers included in Delegation: dns.alfa-system.pl, dns2.alfa-system.pl, fns1.42.pl, ns2.3s.pl, 4 Name Servers included in 1 Zone definitions: dns.alfa-system.pl, dns2.alfa-system.pl, fns1.42.pl, ns2.3s.pl, 1 Name Servers listed in SOA.Primary: dns.alfa-system.pl.
AGood: Only one SOA.Primary Name Server found.: dns.alfa-system.pl.
AGood: SOA.Primary Name Server included in the delegation set.: dns.alfa-system.pl.
AGood: 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, fns1.42.pl, ns2.3s.pl
AGood: All Name Server Domain Names have a Public Suffix.
AGood: All Name Server Domain Names ending with a Public Suffix have minimal one IPv4- or IPv6 address.
AGood: All Name Server ip addresses are public.
AGood: Minimal 2 different name servers (public suffix and public ip address) found: 4 different Name Servers found
AGood: Some Name Servers have IPv6 addresses: 3 Name Servers with IPv6 found (1 Name Servers without IPv6)
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.: 4 Name Servers, 1 Top Level Domain: pl
AGood: Name Servers with different domain names found.: 3 different Domains found
Warning: All Name Servers from the same Country / IP location.: 4 Name Servers, 1 Countries: PL
AInfo: Ipv4-Subnet-list: 4 Name Servers, 3 different subnets (first Byte): 79., 85., 91., 3 different subnets (first two Bytes): 79.98., 85.14., 91.231., 3 different subnets (first three Bytes): 79.98.145., 85.14.85., 91.231.70.
AGood: Name Server IPv4-addresses from different subnet found:
AInfo: IPv6-Subnet-list: 3 Name Servers with IPv6, 2 different subnets (first block): 2001:, 2a00:, 2 different subnets (first two blocks): 2001:0470:, 2a00:13a0:, 2 different subnets (first three blocks): 2001:0470:0071:, 2a00:13a0:3001:, 3 different subnets (first four blocks): 2001:0470:0071:0391:, 2001:0470:0071:069e:, 2a00:13a0:3001:0000:
AGood: Name Server IPv6 addresses from different subnets found.
AGood: Nameserver supports TCP connections: 2 good Nameserver
AGood: Nameserver supports Echo Capitalization: 2 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 2 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 2 good Nameserver
Nameserver doesn't pass all EDNS-Checks: dns.alfa-system.pl: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
Nameserver doesn't pass all EDNS-Checks: h-dns.pl: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: ok. V1DNSSEC: ok. NSID: ok (FRA2). COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
AGood: All SOA have the same Serial Number
AGood: CAA entries found, creating certificate is limited: certum.pl is allowed to create certificates

4. Content- and Performance-critical Checks

AGood: 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.
AGood: Every https result with status 200 and greater 1024 Bytes is compressed (gzip, deflate, br checked).
https://bzyku.alfa-system.pl/ 91.231.70.45
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://bzyku.alfa-system.pl/ 91.231.70.45
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://bzyku.alfa-system.pl/ 91.231.70.45
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://91.231.70.45/ 91.231.70.45
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.
AGood: All checked attribute values are enclosed in quotation marks (" or ').
AInfo: No img element found, no alt attribute checked
AGood: 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://bzyku.alfa-system.pl/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404
3.447 seconds
Warning: 404 needs more then one second
ADuration: 189974 milliseconds, 189.974 seconds

 

8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
bzyku.alfa-system.pl
91.231.70.45
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
bzyku.alfa-system.pl
91.231.70.45
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
no http/2 via ALPN 
SNI required 		Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
no http/2 via ALPN
SNI required 		Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain (complete)

1CN=*.alfa-system.pl


2CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL


3CN=Certum Trusted Network CA, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL


bzyku.alfa-system.pl
bzyku.alfa-system.pl
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
supported
ok

bzyku.alfa-system.pl
bzyku.alfa-system.pl
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
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
Chain (complete)

1CN=*.alfa-system.pl


2CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL


3CN=Certum Trusted Network CA, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL


91.231.70.45
91.231.70.45
443
name does not match
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
supported
ok

91.231.70.45
91.231.70.45
443
name does not match
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
supported
ok
no http/2 via ALPN 
Cert sent without SNI 		Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
no http/2 via ALPN
Cert sent without SNI 		Tls.1.2
no Tls.1.1
no Tls.1.0
no Ssl3
no Ssl2
Chain - too much certificates, don't send root certificates

1CN=alfa-system.net


2CN=R3, O=Let's Encrypt, C=US


3CN=ISRG Root X1, O=Internet Security Research Group, C=US

 

9. Certificates

1.
1.
CN=*.alfa-system.pl
29.11.2023
28.11.2024
600 days expired		*.alfa-system.pl, alfa-system.pl - 2 entries
1.
1.
CN=*.alfa-system.pl
29.11.2023

28.11.2024
600 days expired


*.alfa-system.pl, alfa-system.pl - 2 entries

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:52792E5FA32157005B42CBD6F405FF2D
Thumbprint:B48A77734970654D5B41194EB3028531419E96E0
SHA256 / Certificate:zcYSFh5Guz4N4UVfvSl8lxdFR7FAtJMdbPp4Db2s5W0=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):9bec252d8ede4960096823b092a11c9f7f9906bd47c7d9be7691efbeb65825ef
SHA256 hex / Subject Public Key Information (SPKI):9bec252d8ede4960096823b092a11c9f7f9906bd47c7d9be7691efbeb65825ef (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:http://dvcasha2.ocsp-certum.com
OCSP - must staple:no
Certificate Transparency:yes
Enhanced Key Usage:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)




2.
CN=*.alfa-system.pl
29.11.2023
28.11.2024
600 days expired		*.alfa-system.pl, alfa-system.pl - 2 entries

2.
CN=*.alfa-system.pl
29.11.2023

28.11.2024
600 days expired


*.alfa-system.pl, alfa-system.pl - 2 entries

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:52792E5FA32157005B42CBD6F405FF2D
Thumbprint:B48A77734970654D5B41194EB3028531419E96E0
SHA256 / Certificate:zcYSFh5Guz4N4UVfvSl8lxdFR7FAtJMdbPp4Db2s5W0=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):9bec252d8ede4960096823b092a11c9f7f9906bd47c7d9be7691efbeb65825ef
SHA256 hex / Subject Public Key Information (SPKI):9bec252d8ede4960096823b092a11c9f7f9906bd47c7d9be7691efbeb65825ef (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:http://dvcasha2.ocsp-certum.com
OCSP - must staple:no
Certificate Transparency:yes
Enhanced Key Usage:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)




3.
CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL
11.09.2014
09.06.2027
expires in 323 days

3.
CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL
11.09.2014

09.06.2027
expires in 323 days




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:26DDD22B46C9C44D5A694D39807E72AD
Thumbprint:FF9CEB13C83F15B800E6EFF987B2C72E01B4B320
SHA256 / Certificate:Ep+13lAeJAQc0UqBB1/RzeJXQI1KNT5jaRLji92i0/s=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):4b801b24d1afc92e7b9f3270bfcb0f31430bf151d2a87d6f6e205fb5d3dc12b2
SHA256 hex / Subject Public Key Information (SPKI):4b801b24d1afc92e7b9f3270bfcb0f31430bf151d2a87d6f6e205fb5d3dc12b2
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:http://subca.ocsp-certum.com
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:




4.
CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL
11.09.2014
09.06.2027
expires in 323 days

4.
CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL
11.09.2014

09.06.2027
expires in 323 days




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:26DDD22B46C9C44D5A694D39807E72AD
Thumbprint:FF9CEB13C83F15B800E6EFF987B2C72E01B4B320
SHA256 / Certificate:Ep+13lAeJAQc0UqBB1/RzeJXQI1KNT5jaRLji92i0/s=
SHA256 hex / Cert (DANE * 0 1):129fb5de501e24041cd14a81075fd1cde257408d4a353e636912e38bdda2d3fb
SHA256 hex / PublicKey (DANE * 1 1):4b801b24d1afc92e7b9f3270bfcb0f31430bf151d2a87d6f6e205fb5d3dc12b2
SHA256 hex / Subject Public Key Information (SPKI):4b801b24d1afc92e7b9f3270bfcb0f31430bf151d2a87d6f6e205fb5d3dc12b2
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://subca.ocsp-certum.com
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:




5.
CN=Certum Trusted Network CA, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL
22.10.2008
31.12.2029
expires in 1259 days

5.
CN=Certum Trusted Network CA, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL
22.10.2008

31.12.2029
expires in 1259 days




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA-1 with RSA Encryption
Serial Number:0444C0
Thumbprint:07E032E020B72C3F192F0628A2593A19A70F069E
SHA256 / Certificate:XFhGjVX1jkl+dDmC0rUAELbRZTdKz4On1KMtt2jEQI4=
SHA256 hex / Cert (DANE * 0 1):5c58468d55f58e497e743982d2b50010b6d165374acf83a7d4a32db768c4408e
SHA256 hex / PublicKey (DANE * 1 1):aa2630a7b617b04d0a294bab7a8caaa5016e6dbe604837a83a85719fab667eb5
SHA256 hex / Subject Public Key Information (SPKI):aa2630a7b617b04d0a294bab7a8caaa5016e6dbe604837a83a85719fab667eb5
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:





6.
CN=Certum Trusted Network CA, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL
22.10.2008
10.06.2027
expires in 324 days

6.
CN=Certum Trusted Network CA, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL
22.10.2008

10.06.2027
expires in 324 days




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:00939285400165715F947F288FEFC99B28
Thumbprint:929BADF26081523490EDC91154B380A4776E2185
SHA256 / Certificate:lJQk3CzKq16egNZuDj997rMgHGB9QxXvTG8tk6kXJ50=
SHA256 hex / Cert (DANE * 0 1):949424dc2ccaab5e9e80d66e0e3f7deeb3201c607d4315ef4c6f2d93a917279d
SHA256 hex / PublicKey (DANE * 1 1):aa2630a7b617b04d0a294bab7a8caaa5016e6dbe604837a83a85719fab667eb5
SHA256 hex / Subject Public Key Information (SPKI):aa2630a7b617b04d0a294bab7a8caaa5016e6dbe604837a83a85719fab667eb5
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:http://subca.ocsp-certum.com
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:




7.
CN=Certum CA, O=Unizeto Sp. z o.o., C=PL
11.06.2002
11.06.2027
expires in 325 days

7.
CN=Certum CA, O=Unizeto Sp. z o.o., C=PL
11.06.2002

11.06.2027
expires in 325 days




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA-1 with RSA Encryption
Serial Number:010020
Thumbprint:6252DC40F71143A22FDE9EF7348E064251B18118
SHA256 / Certificate:2OD+vB2y440AlA830n1BNE2ZPnNLmdVlbZd41NgUNiQ=
SHA256 hex / Cert (DANE * 0 1):d8e0febc1db2e38d00940f37d27d41344d993e734b99d5656d9778d4d8143624
SHA256 hex / PublicKey (DANE * 1 1):9736ac3b25d16c45a45418a964578156480a8cc434541ddc5dd59233229868de
SHA256 hex / Subject Public Key Information (SPKI):9736ac3b25d16c45a45418a964578156480a8cc434541ddc5dd59233229868de
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:




2.
1.
CN=alfa-system.net
27.11.2023
25.02.2024
877 days expired		alfa-system.net - 1 entry
2.
1.
CN=alfa-system.net
27.11.2023

25.02.2024
877 days expired


alfa-system.net - 1 entry

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:03EE139B99D9CE01581F5FA5E5EF54CC0D1E
Thumbprint:3054993A25BB8D7820CB4C8BE08FD2512CA264E3
SHA256 / Certificate:gk36qhoP031pA4sW4ihKPIS1onlHdRsJW+1GLyYNYNg=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):036091a5fc85bb6445b2830d76153fb467c1bf30f5a4e4baf2e1a5019656a77e
SHA256 hex / Subject Public Key Information (SPKI):036091a5fc85bb6445b2830d76153fb467c1bf30f5a4e4baf2e1a5019656a77e (is buggy, ignore the result)
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:http://r3.o.lencr.org
OCSP - must staple:no
Certificate Transparency:yes
Enhanced Key Usage:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)




2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020
15.09.2025
309 days expired

2.
CN=R3, O=Let's Encrypt, C=US
04.09.2020

15.09.2025
309 days expired




KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:00912B084ACF0C18A753F6D62E25A75F5A
Thumbprint:A053375BFE84E8B748782C7CEE15827A6AF5A405
SHA256 / Certificate:Z63RFmsCCuYbj1/JaBPATCqliZYHloZVcqPH5zdhPf0=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SHA256 hex / Subject Public Key Information (SPKI):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
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:Clientauthentifizierung (1.3.6.1.5.5.7.3.2), Serverauthentifizierung (1.3.6.1.5.5.7.3.1)




3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015
04.06.2035
expires in 3240 days

3.
CN=ISRG Root X1, O=Internet Security Research Group, C=US
04.06.2015

04.06.2035
expires in 3240 days




KeyalgorithmRSA encryption (4096 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:008210CFB0D240E3594463E0BB63828B00
Thumbprint:CABD2A79A1076A31F21D253635CB039D4329A5E8
SHA256 / Certificate:lrzsBiZJdvN0YHeazyjFp8/oo8Cq4RqP/O4FwL3fCMY=
SHA256 hex / Cert (DANE * 0 1):96bcec06264976f37460779acf28c5a7cfe8a3c0aae11a8ffcee05c0bddf08c6
SHA256 hex / PublicKey (DANE * 1 1):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SHA256 hex / Subject Public Key Information (SPKI):0b9fa5a59eed715c26c1020c711b4f6ec42d58b0015e14337a39dad301c5afc3
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:




 

10. Last Certificates - Certificate Transparency Log Check

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

Issuerlast 7 daysactivenum Certs
CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL
0
0
3
CN=Certum DV TLS G2 R39 CA, O=Asseco Data Systems S.A., C=PL
0
1
1

CertSpotter-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
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


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

Issuerlast 7 daysactivenum Certs
CN=Certum Domain Validation CA SHA2, OU=Certum Certification Authority, O=Unizeto Technologies S.A., C=PL
0
0
3

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
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)
DomainnameHtmlElementrel/property∑∑ size∑ problems∑ int.∑ ext.∑ Origin poss.∑ SRI ParseErrors∑ SRI valid∑ SRI missing
https://bzyku.alfa-system.pl/
91.231.70.45		meta
other
5

0


0
0
0

 

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

DomainnameHtml-Elementname/equiv/ property/relhref/src/contentHttpStatusmsg∑Status
https://bzyku.alfa-system.pl/
91.231.70.45
meta
content-type
text/html; charset=iso-8859-2


1
ok















meta
reply-to
bzyku@alfa-system.pl


1
ok















meta
author
Bzyku


1
ok















meta
description
wierszyk


1
ok















meta
generator
WebSite PRO 4.3


1
ok














 

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

Small Code update, wait one minute

 

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, fns1.42.pl, ns2.3s.pl

 

QNr.DomainTypeNS used
1
pl
NS
d.root-servers.net (2001:500:2d::d)

Answer: a-dns.pl, b-dns.pl, d-dns.pl, f-dns.pl, h-dns.pl, j-dns.pl
2
dns.alfa-system.pl: 2001:470:71:391::2, 91.231.70.37
NS
a-dns.pl (2001:7f9::53)

Answer: dns2.alfa-system.pl
2001:470:71:69e::2, 91.231.70.58

Answer: fns1.42.pl
79.98.145.34

Answer: ns2.3s.pl
85.14.85.2

 

14. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
bzyku.alfa-system.pl
0

no CAA entry found
1
0
alfa-system.pl
5
issue
certum.pl
1
0

5
iodef
mailto:admin@alfa-system.pl
1
0
pl
0

no CAA entry found
1
0

 

15. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
alfa-system.pl
3be2f72893feafd4517c5069d793a61426edfe8538cc8029f141a6874d1bea8
ok
1
0
alfa-system.pl
google-site-verification=fiQgZcQ7LMFYHBsyMTMTJLoidnRuidHO9vvCTHOnysQ
ok
1
0
alfa-system.pl
security_contact=mailto:admin@alfa-system.pl
ok
1
0
alfa-system.pl
v=spf1 mx a ip4:91.231.70.32/27 ip6:2001:470:71:391::/120 ip6:2001:470:70:391::2 a:smtp.alfa-system.pl a:smtp-out.alfa-system.pl -all
ok
1
0
bzyku.alfa-system.pl

ok
1
0
_acme-challenge.bzyku.alfa-system.pl

Name Error - The domain name does not exist
1
0
_acme-challenge.bzyku.alfa-system.pl.alfa-system.pl

Name Error - The domain name does not exist
1
0
_acme-challenge.bzyku.alfa-system.pl.bzyku.alfa-system.pl

Name Error - The domain name does not exist
1
0

 

16. DomainService - Entries

No DomainServiceEntries entries found

 

 

17. Cipher Suites

Summary
DomainIPPortnum CipherstimeStd.ProtocolForward Secrecy
bzyku.alfa-system.pl
91.231.70.45
443
22 Ciphers93.58 sec
0 without, 22 FS
100.00 %
Complete

1
22 Ciphers
22.00 Ciphers/Check		93.58 sec93.58 sec/Check
0 without, 22 FS
100.00 %

Details
DomainIPPortCipher (OpenSsl / IANA)
bzyku.alfa-system.pl
91.231.70.45
443
ECDHE-RSA-CHACHA20-POLY1305
 (Secure)
TLSv1.2
0xCC,0xA8
 FS
22 Ciphers, 93.58 sec
TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256

ECDH
RSA
CHACHA20/POLY1305(256)
AEAD




ECDHE-RSA-AES256-GCM-SHA384
 (Secure)
TLSv1.2
0xC0,0x30
 FS

TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384

ECDH
RSA
AESGCM(256)
AEAD




DHE-RSA-ARIA256-GCM-SHA384
 (Secure)
TLSv1.2
0xC0,0x53
 FS

TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384

DH
RSA
ARIAGCM(256)
AEAD




DHE-RSA-CHACHA20-POLY1305
 (Secure)
TLSv1.2
0xCC,0xAA
 FS

TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256

DH
RSA
CHACHA20/POLY1305(256)
AEAD




DHE-RSA-AES256-GCM-SHA384
 (Secure)
TLSv1.2
0x00,0x9F
 FS

TLS_DHE_RSA_WITH_AES_256_GCM_SHA384

DH
RSA
AESGCM(256)
AEAD




ECDHE-ARIA256-GCM-SHA384
 (Secure)
TLSv1.2
0xC0,0x61
 FS

TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384

ECDH
RSA
ARIAGCM(256)
AEAD




DHE-RSA-AES256-CCM8
 (Secure)
TLSv1.2
0xC0,0xA3
 FS

TLS_DHE_RSA_WITH_AES_256_CCM_8

DH
RSA
AESCCM8(256)
AEAD




DHE-RSA-AES256-CCM
 (Secure)
TLSv1.2
0xC0,0x9F
 FS

TLS_DHE_RSA_WITH_AES_256_CCM

DH
RSA
AESCCM(256)
AEAD




ECDHE-RSA-AES128-GCM-SHA256
 (Secure)
TLSv1.2
0xC0,0x2F
 FS

TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256

ECDH
RSA
AESGCM(128)
AEAD




DHE-RSA-ARIA128-GCM-SHA256
 (Secure)
TLSv1.2
0xC0,0x52
 FS

TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256

DH
RSA
ARIAGCM(128)
AEAD




DHE-RSA-AES128-GCM-SHA256
 (Secure)
TLSv1.2
0x00,0x9E
 FS

TLS_DHE_RSA_WITH_AES_128_GCM_SHA256

DH
RSA
AESGCM(128)
AEAD




ECDHE-ARIA128-GCM-SHA256
 (Secure)
TLSv1.2
0xC0,0x60
 FS

TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256

ECDH
RSA
ARIAGCM(128)
AEAD




DHE-RSA-AES128-CCM8
 (Secure)
TLSv1.2
0xC0,0xA2
 FS

TLS_DHE_RSA_WITH_AES_128_CCM_8

DH
RSA
AESCCM8(128)
AEAD




DHE-RSA-AES128-CCM
 (Secure)
TLSv1.2
0xC0,0x9E
 FS

TLS_DHE_RSA_WITH_AES_128_CCM

DH
RSA
AESCCM(128)
AEAD




ECDHE-RSA-AES256-SHA384
 (Weak)
TLSv1.2
0xC0,0x28
 FS

TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384

ECDH
RSA
AES(256)
SHA384




DHE-RSA-AES256-SHA256
 (Weak)
TLSv1.2
0x00,0x6B
 FS

TLS_DHE_RSA_WITH_AES_256_CBC_SHA256

DH
RSA
AES(256)
SHA256




ECDHE-RSA-AES128-SHA256
 (Weak)
TLSv1.2
0xC0,0x27
 FS

TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256

ECDH
RSA
AES(128)
SHA256




DHE-RSA-AES128-SHA256
 (Weak)
TLSv1.2
0x00,0x67
 FS

TLS_DHE_RSA_WITH_AES_128_CBC_SHA256

DH
RSA
AES(128)
SHA256




ECDHE-RSA-AES256-SHA
 (Weak)
TLSv1
0xC0,0x14
 FS

TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA

ECDH
RSA
AES(256)
SHA1




ECDHE-RSA-AES128-SHA
 (Weak)
TLSv1
0xC0,0x13
 FS

TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA

ECDH
RSA
AES(128)
SHA1




DHE-RSA-AES256-SHA
 (Weak)
SSLv3
0x00,0x39
 FS

TLS_DHE_RSA_WITH_AES_256_CBC_SHA

DH
RSA
AES(256)
SHA1




DHE-RSA-AES128-SHA
 (Weak)
SSLv3
0x00,0x33
 FS

TLS_DHE_RSA_WITH_AES_128_CBC_SHA

DH
RSA
AES(128)
SHA1

 

18. Portchecks

DomainIPPortDescriptionResultAnswer
bzyku.alfa-system.pl
91.231.70.45
21
FTP
open


bzyku.alfa-system.pl
91.231.70.45
21
FTP
open


bzyku.alfa-system.pl
91.231.70.45
22
SSH



bzyku.alfa-system.pl
91.231.70.45
22
SSH



bzyku.alfa-system.pl
91.231.70.45
25
SMTP



bzyku.alfa-system.pl
91.231.70.45
25
SMTP



bzyku.alfa-system.pl
91.231.70.45
53
DNS



bzyku.alfa-system.pl
91.231.70.45
53
DNS



bzyku.alfa-system.pl
91.231.70.45
110
POP3



bzyku.alfa-system.pl
91.231.70.45
110
POP3



bzyku.alfa-system.pl
91.231.70.45
143
IMAP



bzyku.alfa-system.pl
91.231.70.45
143
IMAP



bzyku.alfa-system.pl
91.231.70.45
465
SMTP (encrypted)



bzyku.alfa-system.pl
91.231.70.45
465
SMTP (encrypted)



bzyku.alfa-system.pl
91.231.70.45
587
SMTP (encrypted, submission)



bzyku.alfa-system.pl
91.231.70.45
587
SMTP (encrypted, submission)



bzyku.alfa-system.pl
91.231.70.45
993
IMAP (encrypted)



bzyku.alfa-system.pl
91.231.70.45
993
IMAP (encrypted)



bzyku.alfa-system.pl
91.231.70.45
995
POP3 (encrypted)



bzyku.alfa-system.pl
91.231.70.45
995
POP3 (encrypted)



bzyku.alfa-system.pl
91.231.70.45
1433
MS SQL



bzyku.alfa-system.pl
91.231.70.45
1433
MS SQL



bzyku.alfa-system.pl
91.231.70.45
2082
cPanel (http)



bzyku.alfa-system.pl
91.231.70.45
2082
cPanel (http)



bzyku.alfa-system.pl
91.231.70.45
2083
cPanel (https)



bzyku.alfa-system.pl
91.231.70.45
2083
cPanel (https)



bzyku.alfa-system.pl
91.231.70.45
2086
WHM (http)



bzyku.alfa-system.pl
91.231.70.45
2086
WHM (http)



bzyku.alfa-system.pl
91.231.70.45
2087
WHM (https)



bzyku.alfa-system.pl
91.231.70.45
2087
WHM (https)



bzyku.alfa-system.pl
91.231.70.45
2089
cPanel Licensing



bzyku.alfa-system.pl
91.231.70.45
2089
cPanel Licensing



bzyku.alfa-system.pl
91.231.70.45
2095
cPanel Webmail (http)



bzyku.alfa-system.pl
91.231.70.45
2095
cPanel Webmail (http)



bzyku.alfa-system.pl
91.231.70.45
2096
cPanel Webmail (https)



bzyku.alfa-system.pl
91.231.70.45
2096
cPanel Webmail (https)



bzyku.alfa-system.pl
91.231.70.45
2222
DirectAdmin (http)



bzyku.alfa-system.pl
91.231.70.45
2222
DirectAdmin (http)



bzyku.alfa-system.pl
91.231.70.45
2222
DirectAdmin (https)



bzyku.alfa-system.pl
91.231.70.45
2222
DirectAdmin (https)



bzyku.alfa-system.pl
91.231.70.45
3306
mySql



bzyku.alfa-system.pl
91.231.70.45
3306
mySql



bzyku.alfa-system.pl
91.231.70.45
5224
Plesk Licensing



bzyku.alfa-system.pl
91.231.70.45
5224
Plesk Licensing



bzyku.alfa-system.pl
91.231.70.45
5432
PostgreSQL



bzyku.alfa-system.pl
91.231.70.45
5432
PostgreSQL



bzyku.alfa-system.pl
91.231.70.45
8080
Ookla Speedtest (http)



bzyku.alfa-system.pl
91.231.70.45
8080
Ookla Speedtest (http)



bzyku.alfa-system.pl
91.231.70.45
8080
Ookla Speedtest (https)



bzyku.alfa-system.pl
91.231.70.45
8080
Ookla Speedtest (https)



bzyku.alfa-system.pl
91.231.70.45
8083
VestaCP http



bzyku.alfa-system.pl
91.231.70.45
8083
VestaCP http



bzyku.alfa-system.pl
91.231.70.45
8083
VestaCP https



bzyku.alfa-system.pl
91.231.70.45
8083
VestaCP https



bzyku.alfa-system.pl
91.231.70.45
8443
Plesk Administration (https)



bzyku.alfa-system.pl
91.231.70.45
8443
Plesk Administration (https)



bzyku.alfa-system.pl
91.231.70.45
8447
Plesk Installer + Updates



bzyku.alfa-system.pl
91.231.70.45
8447
Plesk Installer + Updates



bzyku.alfa-system.pl
91.231.70.45
8880
Plesk Administration (http)



bzyku.alfa-system.pl
91.231.70.45
8880
Plesk Administration (http)



bzyku.alfa-system.pl
91.231.70.45
10000
Webmin (http)



bzyku.alfa-system.pl
91.231.70.45
10000
Webmin (http)



bzyku.alfa-system.pl
91.231.70.45
10000
Webmin (https)



bzyku.alfa-system.pl
91.231.70.45
10000
Webmin (https)



 

 

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