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

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http sent over port 443

Checked:
12.03.2025 03:58:55

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1. IP-Addresses

Host	Type	IP-Address	is auth.	∑ Queries	∑ Timeout
edupecsoftware.com	A	143.198.106.50 Santa Clara/California/United States (US) - DigitalOcean, LLC No Hostname found	yes	2	0
	AAAA		yes
www.edupecsoftware.com	CNAME	edupecsoftware.com	yes	1	0
	A	143.198.106.50 Santa Clara/California/United States (US) - DigitalOcean, LLC No Hostname found	yes
*.edupecsoftware.com	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


	3 DNSKEY RR found


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


	Public Key with Algorithm 8, KeyTag 26470, Flags 256


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


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 23.03.2025, 00:00:00 +, Signature-Inception: 02.03.2025, 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: com
com	1 DS RR in the parent zone found


	DS with Algorithm 13, KeyTag 19718, DigestType 2 and Digest isuwzSj0ElCoCkkTiUJNNBUi2Uaw2gwCkfLT13HXgFo=


	1 RRSIG RR to validate DS RR found


	RRSIG-Owner com., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 24.03.2025, 20:00:00 +, Signature-Inception: 11.03.2025, 19:00:00 +, KeyTag 26470, Signer-Name: (root)


	• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 26470 used to validate the DS RRSet in the parent zone


	2 DNSKEY RR found


	Public Key with Algorithm 13, KeyTag 19718, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 13, KeyTag 23202, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner com., Algorithm: 13, 1 Labels, original TTL: 86400 sec, Signature-expiration: 18.03.2025, 15:02:35 +, Signature-Inception: 03.03.2025, 14:57:35 +, KeyTag 19718, Signer-Name: com


	• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 19718 used to validate the DNSKEY RRSet


	• Status: Valid Chain of trust. Parent-DS with Algorithm 13, KeyTag 19718, DigestType 2 and Digest "isuwzSj0ElCoCkkTiUJNNBUi2Uaw2gwCkfLT13HXgFo=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone

Zone: edupecsoftware.com
edupecsoftware.com	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 "acevf6lmo4ip3iv8m1ghc70somg8k1ed" between the hashed NSEC3-owner "acev97nt3knvgsngk8p8au2m0p54dkq7" and the hashed NextOwner "acevq5k8beloiuijic40alfij29kh5go". So the parent zone confirmes the not-existence of a DS RR. Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner acev97nt3knvgsngk8p8au2m0p54dkq7.com., Algorithm: 13, 2 Labels, original TTL: 900 sec, Signature-expiration: 17.03.2025, 01:51:03 +, Signature-Inception: 10.03.2025, 00:41:03 +, KeyTag 23202, Signer-Name: com


	DS-Query in the parent zone sends valid NSEC3 RR with the Hash "ck0pojmg874ljref7efn8430qvit8bsm" as Owner. That's the Hash of "com" with the NextHashedOwnerName "ck0q3udg8cekkae7rukpgct1dvssh8ll". So that domain name is the Closest Encloser of "edupecsoftware.com". Opt-Out: True. Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner ck0pojmg874ljref7efn8430qvit8bsm.com., Algorithm: 13, 2 Labels, original TTL: 900 sec, Signature-expiration: 16.03.2025, 00:26:40 +, Signature-Inception: 08.03.2025, 23:16:40 +, KeyTag 23202, Signer-Name: com


	2 DNSKEY RR found


	Public Key with Algorithm 13, KeyTag 2371, Flags 257 (SEP = Secure Entry Point)


	Public Key with Algorithm 13, KeyTag 34505, Flags 256


	1 RRSIG RR to validate DNSKEY RR found


	RRSIG-Owner edupecsoftware.com., Algorithm: 13, 2 Labels, original TTL: 3600 sec, Signature-expiration: 19.04.2025, 05:17:11 +, Signature-Inception: 17.02.2025, 05:17:11 +, KeyTag 2371, Signer-Name: edupecsoftware.com


	• Status: Good - Algorithmus 13 and DNSKEY with KeyTag 2371 used to validate the DNSKEY RRSet


	Error: DNSKEY 2371 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: 143.198.106.50 Validated: RRSIG-Owner edupecsoftware.com., Algorithm: 13, 2 Labels, original TTL: 300 sec, Signature-expiration: 13.03.2025, 03:59:15 +, Signature-Inception: 11.03.2025, 01:59:15 +, KeyTag 34505, Signer-Name: edupecsoftware.com


	RRSIG Type 16 validates the TXT - Result: v=spf1 include:_spf.mx.cloudflare.net ~all brevo-code:1ae0379ca5300673d143a3edadc667ac Validated: RRSIG-Owner edupecsoftware.com., Algorithm: 13, 2 Labels, original TTL: 300 sec, Signature-expiration: 13.03.2025, 03:59:15 +, Signature-Inception: 11.03.2025, 01:59:15 +, KeyTag 34505, Signer-Name: edupecsoftware.com


	CNAME-Query sends a valid NSEC RR as result with the query name "edupecsoftware.com" equal the NSEC-owner "edupecsoftware.com" and the NextOwner "\000.edupecsoftware.com". 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, 13, MX, TXT, AAAA, LOC, SRV, NAPTR, CERT, SSHFP, RRSIG, NSEC, DNSKEY, TLSA, 53, HIP, CDS, CDNSKEY, 61, 64, 65, URI, CAA Validated: RRSIG-Owner edupecsoftware.com., Algorithm: 13, 2 Labels, original TTL: 1800 sec, Signature-expiration: 13.03.2025, 03:59:15 +, Signature-Inception: 11.03.2025, 01:59:15 +, KeyTag 34505, Signer-Name: edupecsoftware.com


	Status: Good. NoData-Proof required and found.


	AAAA-Query sends a valid NSEC RR as result with the query name "edupecsoftware.com" equal the NSEC-owner "edupecsoftware.com" and the NextOwner "\000.edupecsoftware.com". 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, NS, SOA, 13, MX, TXT, LOC, SRV, NAPTR, CERT, SSHFP, RRSIG, NSEC, DNSKEY, TLSA, 53, HIP, CDS, CDNSKEY, 61, 64, 65, URI, CAA Validated: RRSIG-Owner edupecsoftware.com., Algorithm: 13, 2 Labels, original TTL: 1800 sec, Signature-expiration: 13.03.2025, 03:59:15 +, Signature-Inception: 11.03.2025, 01:59:15 +, KeyTag 34505, Signer-Name: edupecsoftware.com


	Status: Good. NoData-Proof required and found.


	TLSA-Query (_443._tcp.edupecsoftware.com) sends a valid NSEC RR as result with the query name "_443._tcp.edupecsoftware.com" equal the NSEC-owner "_443._tcp.edupecsoftware.com" and the NextOwner "\000._443._tcp.edupecsoftware.com". So the zone confirmes the not-existence of that TLSA RR, but the existence of that query name (minimal one RR with that name exists). Bitmap: RRSIG, NSEC, 128 Validated: RRSIG-Owner _443._tcp.edupecsoftware.com., Algorithm: 13, 4 Labels, original TTL: 1800 sec, Signature-expiration: 13.03.2025, 03:59:15 +, Signature-Inception: 11.03.2025, 01:59:15 +, KeyTag 34505, Signer-Name: edupecsoftware.com


	Status: Good. NoData-Proof required and found.


	CAA-Query sends a valid NSEC RR as result with the query name "edupecsoftware.com" equal the NSEC-owner "edupecsoftware.com" and the NextOwner "\000.edupecsoftware.com". 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, NS, SOA, 13, MX, TXT, AAAA, LOC, SRV, NAPTR, CERT, SSHFP, RRSIG, NSEC, DNSKEY, TLSA, 53, HIP, CDS, CDNSKEY, 61, 64, 65, URI Validated: RRSIG-Owner edupecsoftware.com., Algorithm: 13, 2 Labels, original TTL: 1800 sec, Signature-expiration: 13.03.2025, 03:59:15 +, Signature-Inception: 11.03.2025, 01:59:15 +, KeyTag 34505, Signer-Name: edupecsoftware.com


	Status: Good. NoData-Proof required and found.

Zone: www.edupecsoftware.com
www.edupecsoftware.com	0 DS RR in the parent zone found


	DS-Query in the parent zone has a valid NSEC RR as result with the domain name between the NSEC-Owner "www.edupecsoftware.com" and the NextOwner "\000.www.edupecsoftware.com". So the parent zone confirmes the non-existence of a DS RR. Bitmap: A, 13, MX, TXT, AAAA, LOC, SRV, NAPTR, CERT, SSHFP, RRSIG, NSEC, TLSA, 53, HIP, 61, 64, 65, URI, CAA


	RRSIG Type 5 validates the CNAME - Result: edupecsoftware.com Validated: RRSIG-Owner www.edupecsoftware.com., Algorithm: 13, 3 Labels, original TTL: 300 sec, Signature-expiration: 13.03.2025, 03:59:15 +, Signature-Inception: 11.03.2025, 01:59:15 +, KeyTag 34505, Signer-Name: edupecsoftware.com

3. Name Servers

Domain	Nameserver	NS-IP
edupecsoftware.com	• randall.ns.cloudflare.com / 67m111	172.64.35.235 Toronto/Ontario/Canada (CA) - Cloudflare, Inc.	•
	•	162.159.44.235 Los Angeles/California/United States (US) - Cloudflare, Inc.	•
	•	108.162.195.235 Toronto/Ontario/Canada (CA) - Cloudflare, Inc.	•
	•	2a06:98c1:50::ac40:23eb London/England/United Kingdom (GB) - Cloudflare, Inc.	•
	•	2803:f800:50::6ca2:c3eb San José/Provincia de San José/Costa Rica (CR) - Cloudflare, Inc.	•
	•	2606:4700:58::a29f:2ceb Montreal/Quebec/Canada (CA) - Cloudflare, Inc.	•
	• tani.ns.cloudflare.com / 67m113	173.245.58.224 Toronto/Ontario/Canada (CA) - Cloudflare, Inc.	•
	•	172.64.32.224 Toronto/Ontario/Canada (CA) - Cloudflare, Inc.	•
	•	108.162.192.224 Toronto/Ontario/Canada (CA) - Cloudflare, Inc.	•
	•	2a06:98c1:50::ac40:20e0 London/England/United Kingdom (GB) - Cloudflare, Inc.	•
	•	2803:f800:50::6ca2:c0e0 San José/Provincia de San José/Costa Rica (CR) - Cloudflare, Inc.	•
	•	2606:4700:50::adf5:3ae0 Montreal/Quebec/Canada (CA) - Cloudflare, Inc.	•
com	• a.gtld-servers.net / nnn1-par6		•
	• b.gtld-servers.net / nnn1-eltxl1		•
	• c.gtld-servers.net / nnn1-par6		•
	• d.gtld-servers.net / nnn1-par6		•
	• e.gtld-servers.net / nnn1-par6		•
	• f.gtld-servers.net / nnn1-defra-4		•
	• g.gtld-servers.net / nnn1-defra-4		•
	• h.gtld-servers.net / nnn1-defra-4		•
	• i.gtld-servers.net / nnn1-defra-4		•
	• j.gtld-servers.net / nnn1-frmrs-2		•
	• k.gtld-servers.net / nnn1-frmrs-2		•
	• l.gtld-servers.net / nnn1-frmrs-2		•
	• m.gtld-servers.net / nnn1-frmrs-2		•

4. SOA-Entries

Domain:	com
Zone-Name:	com
Primary:	a.gtld-servers.net
Mail:	nstld.verisign-grs.com
Serial:	1741748322
Refresh:	1800
Retry:	900
Expire:	604800
TTL:	900
num Entries:	13

Domain:	edupecsoftware.com
Zone-Name:	edupecsoftware.com
Primary:	randall.ns.cloudflare.com
Mail:	dns.cloudflare.com
Serial:	2367146256
Refresh:	10000
Retry:	2400
Expire:	604800
TTL:	1800
num Entries:	12

5. Screenshots

No Screenshot listed, because no url-check with https + http status 200-299, 400-599 + not-ACME-check found.

6. Url-Checks

show header:

Domainname	Http-Status	redirect	Sec.	G
• http://edupecsoftware.com/ 143.198.106.50	301	https://edupecsoftware.com/ Html is minified: 103.07 %	0.326	A
Date: Wed, 12 Mar 2025 02:59:45 GMT
Server: Apache
Location: https://edupecsoftware.com/
Content-Length: 235
Content-Type: text/html; charset=iso-8859-1

• http://www.edupecsoftware.com/ 143.198.106.50	301	https://edupecsoftware.com/ Html is minified: 103.07 %	0.340	E
Date: Wed, 12 Mar 2025 02:59:46 GMT
Server: Apache
Location: https://edupecsoftware.com/
Content-Length: 235
Content-Type: text/html; charset=iso-8859-1

• https://edupecsoftware.com/ 143.198.106.50	-103		0.353	P
SecureConnectionError (3, 0x80131501). The SSL connection could not be established, see inner exception. Cannot determine the frame size or a corrupted frame was received

• https://www.edupecsoftware.com/ 143.198.106.50	-103		0.363	P
SecureConnectionError (3, 0x80131501). The SSL connection could not be established, see inner exception. Cannot determine the frame size or a corrupted frame was received

• http://www.edupecsoftware.com:443/ 143.198.106.50	301	http://edupecsoftware.com/	0.330	Q
Visible Content:
Date: Wed, 12 Mar 2025 02:59:48 GMT
Server: Apache
X-Redirect-By: WordPress
Location: http://edupecsoftware.com/
Content-Length: 0
Content-Type: text/html; charset=UTF-8

• http://edupecsoftware.com:443/ 143.198.106.50 gzip used - 35517 / 226167 - 84.30 %	200	Html is minified: 144.84 %	0.996	Q
Visible Content:
Date: Wed, 12 Mar 2025 02:59:47 GMT
Server: Apache
Link: <https://edupecsoftware.com/wp-json/>; rel="https://api.w.org/"
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 35517
Content-Type: text/html; charset=UTF-8

• http://edupecsoftware.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 143.198.106.50 Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	301	https://edupecsoftware.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de Html is minified: 102.36 % Other inline scripts (∑/total): 0/0	0.170	A
Visible Content:
Date: Wed, 12 Mar 2025 02:59:47 GMT
Server: Apache
Location: https://edupecsoftware.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Length: 304
Content-Type: text/html; charset=iso-8859-1

• http://www.edupecsoftware.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 143.198.106.50 Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0	301	https://edupecsoftware.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de Html is minified: 102.36 % Other inline scripts (∑/total): 0/0	0.167	E
Visible Content:
Date: Wed, 12 Mar 2025 02:59:47 GMT
Server: Apache
Location: https://edupecsoftware.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Length: 304
Content-Type: text/html; charset=iso-8859-1

• https://edupecsoftware.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de	-103		0.374	P
SecureConnectionError (3, 0x80131501). The SSL connection could not be established, see inner exception. Cannot determine the frame size or a corrupted frame was received
Visible Content:

• https://143.198.106.50/ 143.198.106.50	-103		0.426	P
SecureConnectionError (3, 0x80131501). The SSL connection could not be established, see inner exception. Cannot determine the frame size or a corrupted frame was received

7. Comments

	1. General Results, most used to calculate the result
A	name "edupecsoftware.com" is domain, public suffix is ".com", top-level-domain is ".com", top-level-domain-type is "generic", tld-manager is "VeriSign Global Registry Services", num .com-domains preloaded: 103088 (complete: 263653)
A	Good: All ip addresses are public addresses
	Warning: Only one ip address found: edupecsoftware.com has only one ip address.
	Warning: Only one ip address found: www.edupecsoftware.com 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: edupecsoftware.com has no ipv6 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: www.edupecsoftware.com has no ipv6 address.
A	Good: No asked Authoritative Name Server had a timeout
A	Good - only one version with Http-Status 200
A	Good: 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.
A	Good: All urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset)
E	http://www.edupecsoftware.com/ 143.198.106.50	301	https://edupecsoftware.com/	Wrong redirect one domain http to other domain https. First redirect to https without new dns query, so the server can send the HSTS header. That's fundamental using HSTS (Http Strict Transport Security). First step: Add correct redirects http ⇒ https. Perhaps in your port 80 vHost something like "RewriteEngine on" + "RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]" (two rows, without the "). Don't add this in your port 443 vHost, that would create a loop. Then recheck your domain, should be Grade C. There is the rule to select one https version as preferred version.
H	Fatal error: No https - result with http-status 200, no encryption
H	Fatal error: http result with http-status 200, no encryption. Add a redirect http ⇒ https, so every connection is secure. Perhaps in your port 80 vHost something like "RewriteEngine on" + "RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,QSA,R=permanent]" (two rows, without the "). Don't add this in your port 443 vHost, that would create a loop.
Q	http://edupecsoftware.com:443/ 143.198.106.50	200		Misconfiguration: http sent over port 443. Wrong port forwarding port 443 to port 80 or wrong vHost definition. If you use a virtual Host <VirtualHost ip-address:443>, try <VirtualHost *:443>.
Q	http://www.edupecsoftware.com:443/ 143.198.106.50	301	http://edupecsoftware.com/	Misconfiguration: http sent over port 443. Wrong port forwarding port 443 to port 80 or wrong vHost definition. If you use a virtual Host <VirtualHost ip-address:443>, try <VirtualHost *:443>.
	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 edupecsoftware.com, 1 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.edupecsoftware.com, 1 ip addresses.
B	No _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.edupecsoftware.com
	2. Header-Checks
U				No https result with http status 2 or 4 (standard-check) found, no header checked.
	3. DNS- and NameServer - Checks
A	Info:: 7 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
A	Info:: 7 Queries complete, 7 with IPv6, 0 with IPv4.
A	Good: All DNS Queries done via IPv6.
	Ok (4 - 8):: An average of 3.5 queries per domain name server required to find all ip addresses of all name servers.
A	Info:: 2 different Name Servers found: randall.ns.cloudflare.com, tani.ns.cloudflare.com, 2 Name Servers included in Delegation: randall.ns.cloudflare.com, tani.ns.cloudflare.com, 2 Name Servers included in 1 Zone definitions: randall.ns.cloudflare.com, tani.ns.cloudflare.com, 1 Name Servers listed in SOA.Primary: randall.ns.cloudflare.com.
A	Good: Only one SOA.Primary Name Server found.: randall.ns.cloudflare.com.
A	Good: SOA.Primary Name Server included in the delegation set.: randall.ns.cloudflare.com.
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: randall.ns.cloudflare.com, tani.ns.cloudflare.com
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
	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: com
	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: cloudflare.com
A	Good: Name servers with different Country locations found: 2 Name Servers, 4 Countries: CA, CR, GB, US
A	Info: Ipv4-Subnet-list: 6 Name Servers, 4 different subnets (first Byte): 108., 162., 172., 173., 4 different subnets (first two Bytes): 108.162., 162.159., 172.64., 173.245., 6 different subnets (first three Bytes): 108.162.192., 108.162.195., 162.159.44., 172.64.32., 172.64.35., 173.245.58.
A	Good: Name Server IPv4-addresses from different subnet found:
A	Info: IPv6-Subnet-list: 6 Name Servers with IPv6, 3 different subnets (first block): 2606:, 2803:, 2a06:, 3 different subnets (first two blocks): 2606:4700:, 2803:f800:, 2a06:98c1:, 4 different subnets (first three blocks): 2606:4700:0050:, 2606:4700:0058:, 2803:f800:0050:, 2a06:98c1:0050:, 4 different subnets (first four blocks): 2606:4700:0050:0000:, 2606:4700:0058:0000:, 2803:f800:0050:0000:, 2a06:98c1:0050:0000:
A	Good: Name Server IPv6 addresses from different subnets found.
A	Good: Nameserver supports TCP connections: 12 good Nameserver
A	Good: Nameserver supports Echo Capitalization: 12 good Nameserver
A	Good: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 12 good Nameserver
A	Good: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 12 good Nameserver
A	Good: All SOA have the same Serial Number
	Warning: No CAA entry with issue/issuewild found, every CAA can create a certificate. Read https://en.wikipedia.org/wiki/DNS_Certification_Authority_Authorization to learn some basics about the idea of CAA. Your name server must support such an entry. Not all dns providers support CAA entries.
	4. Content- and Performance-critical Checks
	https://edupecsoftware.com/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de	-103		Fatal: Check of /.well-known/acme-challenge/random-filename is blocked, http connection error. Creating a Letsencrypt certificate via http-01 challenge can't work. You need a running webserver (http) and an open port 80. If it's a home server + ipv4, perhaps a correct port forwarding port 80 extern ⇒ working port intern is required. Port 80 / http can redirect to another domain port 80 or port 443, but not other ports. If it's a home server, perhaps your ISP blocks port 80. Then you may use the dns-01 challenge. Trouble creating a certificate? Use https://community.letsencrypt.org/ to ask.
A	Good: All checked attribute values are enclosed in quotation marks (" or ').
A	Info: No img element found, no alt attribute checked
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
A	Duration: 120010 milliseconds, 120.010 seconds

8. Connections

No connection informations found. Perhaps only http - connections.

9. Certificates

No certificate informations found. Perhaps only http - connections.

10. Last Certificates - Certificate Transparency Log Check

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

Issuer				last 7 days	active	num Certs
CN=Sectigo ECC Domain Validation Secure Server CA, O=Sectigo Limited, L=Salford, C=GB, ST=Greater Manchester				0	1	1
CN=WE1, O=Google Trust Services, C=US				0	1	1
CN=R11, O=Let's Encrypt, C=US				0	1	1

CertSpotter-Id	Issuer	not before	not after	Domain names	LE-Duplicate	next LE
9610070780 leaf cert	CN=R11, O=Let's Encrypt, C=US	2025-02-24 16:28:23	2025-05-25 16:28:22	edupecsoftware.com, www.edupecsoftware.com - 2 entries
9246548008 leaf cert	CN=WE1, O=Google Trust Services, C=US	2025-01-17 20:58:15	2025-04-17 21:55:24	*.edupecsoftware.com, edupecsoftware.com - 2 entries
7789586601 leaf cert	CN=Sectigo ECC Domain Validation Secure Server CA, O=Sectigo Limited, L=Salford, C=GB, ST=Greater Manchester	2024-07-24 00:00:00	2025-07-24 23:59:59	*.edupecsoftware.com, edupecsoftware.com - 2 entries

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

No CRT - CT-Log entries found

11. Html-Content - Entries

No Html-Content entries found. Only checked if https + status 200/401/403/404

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

No https result http status 200 and Content-Type text/html or text/xml found, no Html-Parsing - Check

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: randall.ns.cloudflare.com, tani.ns.cloudflare.com

QNr.	Domain	Type	NS used
1	com	NS	b.root-servers.net (2001:500:200::b)
	Answer: a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net
2	randall.ns.cloudflare.com	NS	a.gtld-servers.net (2001:503:a83e::2:30)
	Answer: ns3.cloudflare.com, ns4.cloudflare.com, ns5.cloudflare.com, ns6.cloudflare.com, ns7.cloudflare.com
	Answer: ns7.cloudflare.com 162.159.4.8, 162.159.6.6, 2400:cb00:2049:1::a29f:408, 2400:cb00:2049:1::a29f:606
	Answer: ns6.cloudflare.com 162.159.3.11, 162.159.5.6, 2400:cb00:2049:1::a29f:30b, 2400:cb00:2049:1::a29f:506
	Answer: ns5.cloudflare.com 162.159.2.9, 162.159.9.55, 2400:cb00:2049:1::a29f:209, 2400:cb00:2049:1::a29f:937
	Answer: ns4.cloudflare.com 162.159.1.33, 162.159.8.55, 2400:cb00:2049:1::a29f:121, 2400:cb00:2049:1::a29f:837
	Answer: ns3.cloudflare.com 162.159.0.33, 162.159.7.226, 2400:cb00:2049:1::a29f:21, 2400:cb00:2049:1::a29f:7e2
3	tani.ns.cloudflare.com	NS	a.gtld-servers.net (2001:503:a83e::2:30)
	Answer: ns3.cloudflare.com, ns4.cloudflare.com, ns5.cloudflare.com, ns6.cloudflare.com, ns7.cloudflare.com
	Answer: ns7.cloudflare.com 162.159.4.8, 162.159.6.6, 2400:cb00:2049:1::a29f:408, 2400:cb00:2049:1::a29f:606
	Answer: ns6.cloudflare.com 162.159.3.11, 162.159.5.6, 2400:cb00:2049:1::a29f:30b, 2400:cb00:2049:1::a29f:506
	Answer: ns5.cloudflare.com 162.159.2.9, 162.159.9.55, 2400:cb00:2049:1::a29f:209, 2400:cb00:2049:1::a29f:937
	Answer: ns4.cloudflare.com 162.159.1.33, 162.159.8.55, 2400:cb00:2049:1::a29f:121, 2400:cb00:2049:1::a29f:837
	Answer: ns3.cloudflare.com 162.159.0.33, 162.159.7.226, 2400:cb00:2049:1::a29f:21, 2400:cb00:2049:1::a29f:7e2
4	randall.ns.cloudflare.com: 108.162.195.235, 162.159.44.235, 172.64.35.235	A	ns3.cloudflare.com (2400:cb00:2049:1::a29f:21)
5	randall.ns.cloudflare.com: 2606:4700:58::a29f:2ceb, 2803:f800:50::6ca2:c3eb, 2a06:98c1:50::ac40:23eb	AAAA	ns3.cloudflare.com (2400:cb00:2049:1::a29f:21)
6	tani.ns.cloudflare.com: 108.162.192.224, 172.64.32.224, 173.245.58.224	A	ns3.cloudflare.com (2400:cb00:2049:1::a29f:21)
7	tani.ns.cloudflare.com: 2606:4700:50::adf5:3ae0, 2803:f800:50::6ca2:c0e0, 2a06:98c1:50::ac40:20e0	AAAA	ns3.cloudflare.com (2400:cb00:2049:1::a29f:21)

14. CAA - Entries

Domainname	Value	∑ Queries
www.edupecsoftware.com	no CAA entry found	1
edupecsoftware.com	no CAA entry found	1
com	no CAA entry found	1

15. TXT - Entries

Domainname	TXT Entry	Status	∑ Queries
edupecsoftware.com	brevo-code:1ae0379ca5300673d143a3edadc667ac	ok	1
edupecsoftware.com	v=spf1 include:_spf.mx.cloudflare.net ~all	ok	1
www.edupecsoftware.com	brevo-code:1ae0379ca5300673d143a3edadc667ac	ok	1
www.edupecsoftware.com	v=spf1 include:_spf.mx.cloudflare.net ~all	ok	1
_acme-challenge.edupecsoftware.com		Name Error - The domain name does not exist	1
_acme-challenge.www.edupecsoftware.com		Name Error - The domain name does not exist	1
_acme-challenge.edupecsoftware.com.edupecsoftware.com		Name Error - The domain name does not exist	1
_acme-challenge.www.edupecsoftware.com.edupecsoftware.com		Name Error - The domain name does not exist	1
_acme-challenge.www.edupecsoftware.com.www.edupecsoftware.com		Name Error - The domain name does not exist	1

16. DomainService - Entries

Type		Domain	Pref	Value	DNS-error	num Answers	Status	Description
MX		edupecsoftware.com	31	route1.mx.cloudflare.net	0	3	ok
	A			162.159.205.11	0	3	ok
	A			162.159.205.12	0	3	ok
	A			162.159.205.13	0	3	ok
	AAAA			2606:4700:f5::b	0	3	ok
	AAAA			2606:4700:f5::c	0	3	ok
	AAAA			2606:4700:f5::d	0	3	ok
	CNAME				0	0	ok
MX		edupecsoftware.com	58	route2.mx.cloudflare.net	0	3	ok
	A			162.159.205.17	0	3	ok
	A			162.159.205.18	0	3	ok
	A			162.159.205.19	0	3	ok
	AAAA			2606:4700:f5::10	0	3	ok
	AAAA			2606:4700:f5::f	0	3	ok
	AAAA			2606:4700:f5::e	0	3	ok
	CNAME				0	0	ok
MX		edupecsoftware.com	92	route3.mx.cloudflare.net	0	3	ok
	A			162.159.205.25	0	3	ok
	A			162.159.205.24	0	3	ok
	A			162.159.205.23	0	3	ok
	AAAA			2606:4700:f5::11	0	3	ok
	AAAA			2606:4700:f5::12	0	3	ok
	AAAA			2606:4700:f5::13	0	3	ok
	CNAME				0	0	ok
SPF	TXT	edupecsoftware.com		v=spf1 include:_spf.mx.cloudflare.net ~all			ok
	TXT	_spf.mx.cloudflare.net		v=spf1 ip4:104.30.0.0/19 ip6:2405:8100:c000::/38 ~all			ok
_dmarc	TXT	_dmarc.edupecsoftware.com		v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com			ok
	TXT	edupecsoftware.com._report._dmarc.dmarc.brevo.com		mailto:rua@dmarc.brevo.com			ok	Mail domain unequal current domain. Check required, if there is a confirming _report._dmarc-Record. See RFC 7489, 7.1.
	TXT	edupecsoftware.com._report._dmarc.dmarc.brevo.com		v=DMARC1			ok	Confirmed. Sending reports to external domain is allowed.

17. Cipher Suites

No results

18. Portchecks

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

Permalink: https://check-your-website.server-daten.de/?i=5f5f1433-3ecb-4bbc-926a-b66aa5012a73

Last Result: https://check-your-website.server-daten.de/?q=edupecsoftware.com - 2025-03-12 03:58:55

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