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


 

 

 

1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
wolke.vonkuno.root64.de
A

yes
1
0

AAAA
2a02:2454:991c:c100:be24:11ff:fe67:bf23
Leipzig/Saxony/Germany (DE) - Tele Columbus AG

yes


www.wolke.vonkuno.root64.de
A

yes
1
0

AAAA
2a02:2454:991c:c100:be24:11ff:fe67:bf23
Leipzig/Saxony/Germany (DE) - Tele Columbus AG

yes


*.vonkuno.root64.de
A

yes



AAAA
2a02:2454:8000:63:b89c:f16d:686e:9e81
yes



CNAME

yes


*.wolke.vonkuno.root64.de
A

yes



AAAA
2a02:2454:991c:c100:be24:11ff:fe67:bf23
yes



CNAME

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 38696, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 8, KeyTag 61809, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner (root), Algorithm: 8, 0 Labels, original TTL: 172800 sec, Signature-expiration: 11.12.2025, 00:00:00 +, Signature-Inception: 20.11.2025, 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: de

de
1 DS RR in the parent zone found






DS with Algorithm 8, KeyTag 26755, DigestType 2 and Digest 80E1eAmllUMRzLgq3hFMbB1ySnXAOVE3qjl4A1Ql540=






1 RRSIG RR to validate DS RR found






RRSIG-Owner de., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 07.12.2025, 17:00:00 +, Signature-Inception: 24.11.2025, 16:00:00 +, KeyTag 61809, Signer-Name: (root)






Status: Good - Algorithmus 8 and DNSKEY with KeyTag 61809 used to validate the DS RRSet in the parent zone






3 DNSKEY RR found






Public Key with Algorithm 8, KeyTag 9783, Flags 256






Public Key with Algorithm 8, KeyTag 26755, Flags 257 (SEP = Secure Entry Point)






Public Key with Algorithm 8, KeyTag 50538, Flags 256






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner de., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 03.12.2025, 19:19:35 +, Signature-Inception: 19.11.2025, 17:49:35 +, KeyTag 26755, Signer-Name: de






Status: Good - Algorithmus 8 and DNSKEY with KeyTag 26755 used to validate the DNSKEY RRSet






Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 26755, DigestType 2 and Digest "80E1eAmllUMRzLgq3hFMbB1ySnXAOVE3qjl4A1Ql540=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: root64.de

root64.de
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 "qpu47mpt3g1dvnlgkjuq6dhkm6q1t7dq" between the hashed NSEC3-owner "qpu33dh4o9e6i6c8mmofhkkjnge93uqr" and the hashed NextOwner "qpu4cjtg3kj0ef3jseamggjt4t15tshv". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner qpu33dh4o9e6i6c8mmofhkkjnge93uqr.de., Algorithm: 8, 2 Labels, original TTL: 7200 sec, Signature-expiration: 08.12.2025, 07:19:38 +, Signature-Inception: 24.11.2025, 05:49:38 +, KeyTag 50538, Signer-Name: de






DS-Query in the parent zone sends valid NSEC3 RR with the Hash "tjlb7qbojvmlf1s6gdriru7vsms1lg16" as Owner. That's the Hash of "de" with the NextHashedOwnerName "tjlcsjat4ljtvo0tjncrrdf6kf6onefb". So that domain name is the Closest Encloser of "root64.de". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner tjlb7qbojvmlf1s6gdriru7vsms1lg16.de., Algorithm: 8, 2 Labels, original TTL: 7200 sec, Signature-expiration: 08.12.2025, 07:19:38 +, Signature-Inception: 24.11.2025, 05:49:38 +, KeyTag 50538, Signer-Name: de






0 DNSKEY RR found









Zone: vonkuno.root64.de

vonkuno.root64.de
0 DS RR in the parent zone found






0 DNSKEY RR found









Zone: wolke.vonkuno.root64.de

wolke.vonkuno.root64.de
0 DS RR in the parent zone found






0 DNSKEY RR found









Zone: www.wolke.vonkuno.root64.de

www.wolke.vonkuno.root64.de
0 DS RR in the parent zone found

 

3. Name Servers

DomainNameserverNS-IP
www.wolke.vonkuno.root64.de
  ns1.ipv64.net / nameserver2.ipv64.net

wolke.vonkuno.root64.de
  ns1.ipv64.net / nameserver1.ipv64.net
159.69.110.93
Nuremberg/Bavaria/Germany (DE) - Hetzner Online GmbH


 
2a01:4f8:1c1e:a6a8::1
Nuremberg/Bavaria/Germany (DE) - Hetzner Online GmbH

vonkuno.root64.de
  ns1.ipv64.net / nameserver1.ipv64.net
159.69.110.93
Nuremberg/Bavaria/Germany (DE) - Hetzner Online GmbH


 
2a01:4f8:1c1e:a6a8::1
Nuremberg/Bavaria/Germany (DE) - Hetzner Online GmbH

root64.de
  ns1.ipv64.net / nameserver1.ipv64.net
159.69.110.93
Nuremberg/Bavaria/Germany (DE) - Hetzner Online GmbH


 
2a01:4f8:1c1e:a6a8::1
Nuremberg/Bavaria/Germany (DE) - Hetzner Online GmbH


  ns2.ipv64.net / nameserver2.ipv64.net
167.235.231.182
Falkenstein/Saxony/Germany (DE) - Hetzner Online GmbH


 
2a01:4f8:c010:b4fc::1
Falkenstein/Saxony/Germany (DE) - Hetzner Online GmbH

de
  a.nic.de / ns-2.de.de8.knot


  f.nic.de / ns-2.de.de1.knot


  l.de.net / ns-1.de.fr1.knot


  n.de.net / s3.dex


  s.de.net / ns-2.de.de9.knot


  z.nic.de / ns-2.de.de2.bind

 

4. SOA-Entries


Domain:de
Zone-Name:de
Primary:f.nic.de
Mail:dns-operations.denic.de
Serial:1764022228
Refresh:7200
Retry:7200
Expire:3600000
TTL:7200
num Entries:6


Domain:root64.de
Zone-Name:root64.de
Primary:ns1.ipv64.net
Mail:hostmaster.ipv64.net
Serial:2025112001
Refresh:10800
Retry:3600
Expire:604800
TTL:3600
num Entries:4


Domain:vonkuno.root64.de
Zone-Name:root64.de
Primary:ns1.ipv64.net
Mail:hostmaster.ipv64.net
Serial:2025112001
Refresh:10800
Retry:3600
Expire:604800
TTL:3600
num Entries:2


Domain:wolke.vonkuno.root64.de
Zone-Name:root64.de
Primary:ns1.ipv64.net
Mail:hostmaster.ipv64.net
Serial:2025112001
Refresh:10800
Retry:3600
Expire:604800
TTL:3600
num Entries:2


Domain:www.wolke.vonkuno.root64.de
Zone-Name:root64.de
Primary:ns1.ipv64.net
Mail:hostmaster.ipv64.net
Serial:2025112001
Refresh:10800
Retry:3600
Expire:604800
TTL:3600
num Entries:1


5. Screenshots

Startaddress: https://wolke.vonkuno.root64.de/, address used: https://wolke.vonkuno.root64.de/, Screenshot created 2025-11-24 23:15:02 +00:0

 

Mobil (412px x 732px)

 

1042 milliseconds

 

Screenshot mobile - https://wolke.vonkuno.root64.de/
Mobil + Landscape (732px x 412px)

 

1040 milliseconds

 

Screenshot mobile landscape - https://wolke.vonkuno.root64.de/
Screen (1280px x 1680px)

 

1105 milliseconds

 

Screenshot Desktop - https://wolke.vonkuno.root64.de/

 

Mobile- and other Chrome-Checks


widthheight
visual Viewport412717
content Size560717

 

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

 

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://wolke.vonkuno.root64.de/
2a02:2454:991c:c100:be24:11ff:fe67:bf23
301
https://wolke.vonkuno.root64.de/
Html is minified: 109.21 %
0.047
A
Server: openresty
Date: Mon, 24 Nov 2025 22:12:51 GMT
Connection: keep-alive
Location: https://wolke.vonkuno.root64.de/
Content-Type: text/html
Content-Length: 166

• http://www.wolke.vonkuno.root64.de/
2a02:2454:991c:c100:be24:11ff:fe67:bf23
301
https://www.wolke.vonkuno.root64.de/
Html is minified: 109.21 %
0.030
A
Server: openresty
Date: Mon, 24 Nov 2025 22:12:51 GMT
Connection: keep-alive
Location: https://www.wolke.vonkuno.root64.de/
Content-Type: text/html
Content-Length: 166

• https://www.wolke.vonkuno.root64.de/
2a02:2454:991c:c100:be24:11ff:fe67:bf23
301
https://wolke.vonkuno.root64.de/
Html is minified: 109.21 %
2.103
A
Server: openresty
Date: Mon, 24 Nov 2025 22:12:55 GMT
Connection: keep-alive
Location: https://wolke.vonkuno.root64.de/
Strict-Transport-Security: max-age=63072000; preload
Content-Type: text/html
Content-Length: 166

• https://wolke.vonkuno.root64.de/
2a02:2454:991c:c100:be24:11ff:fe67:bf23 gzip used - 397 / 615 - 35.45 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 1/127
200

Html is minified: 133.12 %
Other inline scripts (∑/total): 0/0
2.117
A
Server: openresty
Date: Mon, 24 Nov 2025 22:12:51 GMT
Transfer-Encoding: chunked
Connection: keep-alive
ETag: W/"68f4d79d-267"
X-Content-Type-Options: nosniff
X-Frame-Options: SAMEORIGIN
Referrer-Policy: no-referrer
Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self'; connect-src 'self'; media-src 'self'; frame-src 'self';
Permissions-Policy: camera=(), microphone=(), geolocation=()
X-XSS-Protection: 1; mode=block
Strict-Transport-Security: max-age=63072000; preload
Content-Type: text/html; charset=utf-8
Last-Modified: Sun, 19 Oct 2025 12:20:45 GMT
Content-Encoding: gzip
Content-Length: 397

• http://wolke.vonkuno.root64.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
2a02:2454:991c:c100:be24:11ff:fe67:bf23
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://wolke.vonkuno.root64.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 109.21 %
Other inline scripts (∑/total): 0/0
0.030
A
Visible Content:
Server: openresty
Date: Mon, 24 Nov 2025 22:12:59 GMT
Connection: keep-alive
Location: https://wolke.vonkuno.root64.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Type: text/html
Content-Length: 166

• http://www.wolke.vonkuno.root64.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
2a02:2454:991c:c100:be24:11ff:fe67:bf23
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://www.wolke.vonkuno.root64.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 109.21 %
Other inline scripts (∑/total): 0/0
0.023
A
Visible Content:
Server: openresty
Date: Mon, 24 Nov 2025 22:12:59 GMT
Connection: keep-alive
Location: https://www.wolke.vonkuno.root64.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Type: text/html
Content-Length: 166

• https://www.wolke.vonkuno.root64.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de

Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://wolke.vonkuno.root64.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 109.21 %
Other inline scripts (∑/total): 0/0
2.390
A
Visible Content:
Server: openresty
Date: Mon, 24 Nov 2025 22:13:03 GMT
Connection: keep-alive
Location: https://wolke.vonkuno.root64.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Strict-Transport-Security: max-age=63072000; preload
Content-Type: text/html
Content-Length: 166

• https://wolke.vonkuno.root64.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
gzip used - 111 / 150 - 26.00 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
404

Html is minified: 110.29 %
Other inline scripts (∑/total): 0/0
2.124
A
Not Found
Visible Content:
Server: openresty
Date: Mon, 24 Nov 2025 22:12:59 GMT
Transfer-Encoding: chunked
Connection: keep-alive
Strict-Transport-Security: max-age=63072000; preload
Content-Type: text/html
Content-Encoding: gzip
Content-Length: 111

• https://[2a02:2454:991c:c100:be24:11ff:fe67:bf23]/
2a02:2454:991c:c100:be24:11ff:fe67:bf23
-103


0.077
P
SecureConnectionError (3, 0x80131501). The SSL connection could not be established, see inner exception. Authentication failed because the remote party sent a TLS alert: '112' (FF: SSL_ERROR_UNRECOGNIZED_NAME_ALERT)

 

7. Comments


1. General Results, most used to calculate the result

Aname "wolke.vonkuno.root64.de" is subdomain, public suffix is ".de", top-level-domain is ".de", top-level-domain-type is "country-code", Country is Germany, tld-manager is "DENIC eG", num .de-domains preloaded: 11085 (complete: 276475)
AGood: All ip addresses are public addresses
Warning: Only one ip address found: wolke.vonkuno.root64.de has only one ip address.
Warning: Only one ip address found: www.wolke.vonkuno.root64.de has only one ip address.
AGood: No asked Authoritative Name Server had a timeout
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.
AGood: HSTS has preload directive
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.
AGood: Some urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset):1 complete Content-Type - header (2 urls)
https://wolke.vonkuno.root64.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de


Url with incomplete Content-Type - header - missing charset
Ahttp://wolke.vonkuno.root64.de/ 2a02:2454:991c:c100:be24:11ff:fe67:bf23
301
https://wolke.vonkuno.root64.de/
Correct redirect http - https with the same domain name
Ahttp://www.wolke.vonkuno.root64.de/ 2a02:2454:991c:c100:be24:11ff:fe67:bf23
301
https://www.wolke.vonkuno.root64.de/
Correct redirect http - https with the same domain name
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 wolke.vonkuno.root64.de, 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.wolke.vonkuno.root64.de, 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.wolke.vonkuno.root64.de

2. Header-Checks

Awolke.vonkuno.root64.de 2a02:2454:991c:c100:be24:11ff:fe67:bf23
Content-Security-Policy
Ok: Header without syntax errors found: default-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self'; connect-src 'self'; media-src 'self'; frame-src 'self';
A

Good: default-src directive only with 'none' or 'self', additional sources are blocked. connect-src, font-src, frame-src, media-src
A

Good: default-src without 'unsafe-inline' or 'unsave-eval'. connect-src, font-src, frame-src, media-src
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.
E

Bad: No frame-ancestors directive found. Use one to limit the pages allowed to use this page in frame / iframe / object / embed / applet. frame-ancestors is a navigation-directive, so default-src isn't used.
E

Bad: No base-uri directive found. Use one to limit 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: No object-src found, but the default-src used as fallback is defined and restricted.
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.
C

Info: default-src and some other fetch directives have the same list of values. Remove the other fetch directive, default-src is used as fallback. Directives to remove: connect-src, font-src, frame-src, media-src
A
X-Content-Type-Options
Ok: Header without syntax errors found: nosniff
A
Referrer-Policy
Ok: Header without syntax errors found: no-referrer
A
Permissions-Policy
Ok: Header without syntax errors found: camera=(), microphone=(), geolocation=()
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
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
Bwolke.vonkuno.root64.de 2a02:2454:991c:c100:be24:11ff:fe67:bf23
Cross-Origin-Embedder-Policy
Info: Missing Header
Bwolke.vonkuno.root64.de 2a02:2454:991c:c100:be24:11ff:fe67:bf23
Cross-Origin-Opener-Policy
Info: Missing Header
Bwolke.vonkuno.root64.de 2a02:2454:991c:c100:be24:11ff:fe67:bf23
Cross-Origin-Resource-Policy
Info: Missing Header

3. DNS- and NameServer - Checks

AInfo:: 2 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 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.ns1.ipv64.net (195.201.223.103, 2a01:4f8:c2c:559c::1), ns2.ipv64.net (157.90.241.20, 2a01:4f8:c012:9c97::1)
AGood (1 - 3.0):: An average of 1.0 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 2 different Name Servers found: ns1.ipv64.net, ns2.ipv64.net, 2 Name Servers included in Delegation: ns1.ipv64.net, ns2.ipv64.net, 2 Name Servers included in 1 Zone definitions: ns1.ipv64.net, ns2.ipv64.net, 1 Name Servers listed in SOA.Primary: ns1.ipv64.net.
AGood: Only one SOA.Primary Name Server found.: ns1.ipv64.net.
AGood: SOA.Primary Name Server included in the delegation set.: ns1.ipv64.net.
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: ns1.ipv64.net, ns2.ipv64.net
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: 2 different Name Servers found
AGood: 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: net
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: ipv64.net
Warning: All Name Servers from the same Country / IP location.: 2 Name Servers, 1 Countries: DE
AInfo: Ipv4-Subnet-list: 2 Name Servers, 2 different subnets (first Byte): 159., 167., 2 different subnets (first two Bytes): 159.69., 167.235., 2 different subnets (first three Bytes): 159.69.110., 167.235.231.
AExcellent: Every Name Server IPv4-address starts with an unique Byte.
AInfo: IPv6-Subnet-list: 2 Name Servers with IPv6, 1 different subnets (first block): 2a01:, 1 different subnets (first two blocks): 2a01:04f8:, 2 different subnets (first three blocks): 2a01:04f8:1c1e:, 2a01:04f8:c010:, 2 different subnets (first four blocks): 2a01:04f8:1c1e:a6a8:, 2a01:04f8:c010:b4fc:
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
AGood: 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

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.
https://wolke.vonkuno.root64.de/ 2a02:2454:991c:c100:be24:11ff:fe67:bf23
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://wolke.vonkuno.root64.de/ 2a02:2454:991c:c100:be24:11ff:fe67:bf23
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.
AGood: Every https connection via port 443 supports the http/2 protocol via ALPN.
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://wolke.vonkuno.root64.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404
2.124 seconds
Warning: 404 needs more then one second
ADuration: 171660 milliseconds, 171.660 seconds

 

8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
wolke.vonkuno.root64.de
2a02:2454:991c:c100:be24:11ff:fe67:bf23
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
wolke.vonkuno.root64.de
2a02:2454:991c:c100:be24:11ff:fe67:bf23
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
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 (complete)

1CN=wolke.vonkuno.root64.de


2CN=E7, O=Let's Encrypt, C=US


www.wolke.vonkuno.root64.de
2a02:2454:991c:c100:be24:11ff:fe67:bf23
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok

www.wolke.vonkuno.root64.de
2a02:2454:991c:c100:be24:11ff:fe67:bf23
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
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 (complete)

1CN=wolke.vonkuno.root64.de


2CN=E7, O=Let's Encrypt, C=US


wolke.vonkuno.root64.de
wolke.vonkuno.root64.de
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok

wolke.vonkuno.root64.de
wolke.vonkuno.root64.de
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
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 (complete)

1CN=wolke.vonkuno.root64.de


2CN=E7, O=Let's Encrypt, C=US


www.wolke.vonkuno.root64.de
www.wolke.vonkuno.root64.de
443
ok
Tls12
ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok

www.wolke.vonkuno.root64.de
www.wolke.vonkuno.root64.de
443
ok
Tls12

ECDH Ephermal
255
Aes256
256
Sha384
not supported
ok
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 (complete)

1CN=wolke.vonkuno.root64.de


2CN=E7, O=Let's Encrypt, C=US

 

9. Certificates

1.
1.
CN=wolke.vonkuno.root64.de
23.11.2025
21.02.2026
150 days expired
wolke.vonkuno.root64.de, www.wolke.vonkuno.root64.de - 2 entries
1.
1.
CN=wolke.vonkuno.root64.de
23.11.2025

21.02.2026
150 days expired


wolke.vonkuno.root64.de, www.wolke.vonkuno.root64.de - 2 entries

KeyalgorithmEC Public Key (384 bit, secp384r1)
Signatur:ECDSA SHA384
Serial Number:051F43EEC0EFD43195C1DEDC8C2A92E8A295
Thumbprint:D1AE36A1D976BED5B6F9CDCAD922D013B7F3D817
SHA256 / Certificate:Nxegfvrg2vM8RmzKt7Uzb65xzyiOhulkp1NoW7fVOZM=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):46419c8c7196aaf30d877dd056e8a91a51b436842c556eab5816244b766e3c29
SHA256 hex / Subject Public Key Information (SPKI):46419c8c7196aaf30d877dd056e8a91a51b436842c556eab5816244b766e3c29 (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), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)




2.
CN=E7, O=Let's Encrypt, C=US
13.03.2024
13.03.2027
expires in 235 days


2.
CN=E7, O=Let's Encrypt, C=US
13.03.2024

13.03.2027
expires in 235 days




KeyalgorithmEC Public Key (384 bit, secp384r1)
Signatur:SHA256 With RSA-Encryption
Serial Number:00AA75F1E62B8F0A220966D38BBFD4BAA1
Thumbprint:3B73C17E3DF87CF3AA77F1389219EB5EDD519E7F
SHA256 / Certificate:rrH9dBDoO8lvXaPGp8LBu4NtH6XLhucIUViQ5Ciodws=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):cbbc559b44d524d6a132bdac672744da3407f12aae5d5f722c5f6c7913871c75
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: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=E7, O=Let's Encrypt, C=US
0
0
1

CertSpotter-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
12831996176
leaf cert
CN=E7, O=Let's Encrypt, C=US
2025-11-22 13:35:30
2026-02-20 13:35:29
wolke.vonkuno.root64.de - 1 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=E7, O=Let's Encrypt, C=US
0
0
2
CN=E8, O=Let's Encrypt, C=US
0
0
1

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
22700386998
leaf cert
CN=E8, O=Let's Encrypt, C=US
2025-11-23 21:17:43
2026-02-21 21:17:42
www.wolke.vonkuno.root64.de
1 entries


22695015494
leaf cert
CN=E7, O=Let's Encrypt, C=US
2025-11-23 20:43:06
2026-02-21 20:43:05
wolke.vonkuno.root64.de, www.wolke.vonkuno.root64.de
2 entries


22673121009
leaf cert
CN=E7, O=Let's Encrypt, C=US
2025-11-22 12:35:30
2026-02-20 12:35:29
wolke.vonkuno.root64.de
1 entries


 

11. Html-Content - Entries

Summary


Subresource Integrity (SRI)
DomainnameHtmlElementrel/property∑ size∑ problems∑ int.∑ ext.∑ Origin poss.∑ SRI ParseErrors∑ SRI valid∑ SRI missing
https://wolke.vonkuno.root64.de/
2a02:2454:991c:c100:be24:11ff:fe67:bf23
a

2

0


0
0
0

 

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

DomainnameHtml-Elementname/equiv/ property/relhref/src/contentHttpStatusmsgStatus
https://wolke.vonkuno.root64.de/
2a02:2454:991c:c100:be24:11ff:fe67:bf23
a

http://nginx.com/


1
ok















a

http://nginx.org/


1
ok














 

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

Url used (first standard-https-result with http status 200): https://wolke.vonkuno.root64.de/

Summary

Good: No non-document-errors
0 errors
0 warnings

The NU-Validator answered with a http status code 429, 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: ns1.ipv64.net, ns2.ipv64.net

 

QNr.DomainTypeNS used
1
net
NS
a.root-servers.net (2001:503:ba3e::2:30)

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
ns1.ipv64.net: 195.201.223.103, 2a01:4f8:c2c:559c::1
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: ns2.ipv64.net
157.90.241.20, 2a01:4f8:c012:9c97::1

 

14. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.wolke.vonkuno.root64.de
0

no CAA entry found
1
0
wolke.vonkuno.root64.de
0

no CAA entry found
1
0
vonkuno.root64.de
0

no CAA entry found
1
0
root64.de
0

no CAA entry found
1
0
de
0

no CAA entry found
1
0

 

15. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
vonkuno.root64.de

ok
1
0
wolke.vonkuno.root64.de

ok
1
0
www.wolke.vonkuno.root64.de

ok
1
0
_acme-challenge.wolke.vonkuno.root64.de

missing entry or wrong length
1
0
_acme-challenge.www.wolke.vonkuno.root64.de

missing entry or wrong length
1
0
_acme-challenge.wolke.vonkuno.root64.de.vonkuno.root64.de

perhaps wrong
1
0
_acme-challenge.wolke.vonkuno.root64.de.wolke.vonkuno.root64.de

perhaps wrong
1
0
_acme-challenge.www.wolke.vonkuno.root64.de.wolke.vonkuno.root64.de

perhaps wrong
1
0
_acme-challenge.www.wolke.vonkuno.root64.de.www.wolke.vonkuno.root64.de

perhaps wrong
1
0

 

16. DomainService - Entries

No DomainServiceEntries entries found

 

 

17. Cipher Suites

Summary
DomainIPPortnum CipherstimeStd.ProtocolForward Secrecy
wolke.vonkuno.root64.de
2a02:2454:991c:c100:be24:11ff:fe67:bf23
443
3 Ciphers22.43 sec
0 without, 3 FS
100.00 %
www.wolke.vonkuno.root64.de
2a02:2454:991c:c100:be24:11ff:fe67:bf23
443
3 Ciphers22.33 sec
0 without, 3 FS
100.00 %
Complete

2
6 Ciphers
3.00 Ciphers/Check
44.76 sec22.38 sec/Check
0 without, 6 FS
100.00 %

Details
DomainIPPortCipher (OpenSsl / IANA)
wolke.vonkuno.root64.de
2a02:2454:991c:c100:be24:11ff:fe67:bf23
443
ECDHE-ECDSA-CHACHA20-POLY1305
(Recommended)
TLSv1.2
0xCC,0xA9
FS
3 Ciphers, 22.43 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.wolke.vonkuno.root64.de
2a02:2454:991c:c100:be24:11ff:fe67:bf23
443
ECDHE-ECDSA-CHACHA20-POLY1305
(Recommended)
TLSv1.2
0xCC,0xA9
FS
3 Ciphers, 22.33 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.

 

 

Permalink: https://check-your-website.server-daten.de/?i=b0ac2d93-8e43-4232-b94a-9b3f53aafb2d

 

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