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




1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
admin.szut.de
A
195.37.105.110
Bremen/Germany (DE) - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
No Hostname found
yes
1
0

AAAA

yes


www.admin.szut.de
A
195.37.105.110
Bremen/Germany (DE) - Verein zur Foerderung eines Deutschen Forschungsnetzes e.V.
No Hostname found
yes
1
0

AAAA

yes


*.szut.de
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes


*.admin.szut.de
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 14631, Flags 256



Public Key with Algorithm 8, KeyTag 20326, 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: 01.07.2021, 00:00:00 +, Signature-Inception: 10.06.2021, 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: 23.06.2021, 05:00:00 +, Signature-Inception: 10.06.2021, 04:00:00 +, KeyTag 14631, Signer-Name: (root)



Status: Good - Algorithmus 8 and DNSKEY with KeyTag 14631 used to validate the DS RRSet in the parent zone



2 DNSKEY RR found



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



Public Key with Algorithm 8, KeyTag 26895, Flags 256



1 RRSIG RR to validate DNSKEY RR found



RRSIG-Owner de., Algorithm: 8, 1 Labels, original TTL: 300 sec, Signature-expiration: 21.06.2021, 11:44:32 +, Signature-Inception: 07.06.2021, 10:14:32 +, 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: szut.de
szut.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 "lhru4dcqn30jf145ll93cal6v5o1l442" between the hashed NSEC3-owner "lhrtmfesai09jud5so6kl1gv844u0n5p" and the hashed NextOwner "lhrutbcdt2q2p5rcsqsrobafu8iuov1t". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: A, RRSIG Validated: RRSIG-Owner lhrtmfesai09jud5so6kl1gv844u0n5p.de., Algorithm: 8, 2 Labels, original TTL: 7200 sec, Signature-expiration: 24.06.2021, 00:19:30 +, Signature-Inception: 09.06.2021, 22:49:30 +, KeyTag 26895, 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 "tjlfjprvcmsth243pmi98vqtj9pgi7us". So that domain name is the Closest Encloser of "szut.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: 20.06.2021, 01:49:06 +, Signature-Inception: 06.06.2021, 00:19:06 +, KeyTag 26895, Signer-Name: de



0 DNSKEY RR found




Zone: admin.szut.de
admin.szut.de
0 DS RR in the parent zone found



0 DNSKEY RR found




Zone: www.admin.szut.de
www.admin.szut.de
0 DS RR in the parent zone found


3. Name Servers

DomainNameserverNS-IP
www.admin.szut.de
  ns81.domaincontrol.com / p19

admin.szut.de
  ns81.domaincontrol.com / p17
97.74.101.32
Scottsdale/Arizona/United States (US) - Host Europe GmbH

szut.de
  ns81.domaincontrol.com / p19
97.74.101.32
Scottsdale/Arizona/United States (US) - Host Europe GmbH


  ns82.domaincontrol.com / p04
173.201.69.32
Scottsdale/Arizona/United States (US) - Host Europe GmbH

de
  a.nic.de / ns-1.de.de8.bind


  f.nic.de / ns-1.de.de1


  l.de.net / ns-1.de.fr1


  n.de.net / s3.amx


  s.de.net / ns-3.de.de9


  z.nic.de / ns-1.de.de2.bind


4. SOA-Entries


Domain:de
Zone-Name:de
Primary:f.nic.de
Mail:its.denic.de
Serial:1623326110
Refresh:7200
Retry:7200
Expire:3600000
TTL:7200
num Entries:3


Domain:de
Zone-Name:de
Primary:f.nic.de
Mail:its.denic.de
Serial:1623326210
Refresh:7200
Retry:7200
Expire:3600000
TTL:7200
num Entries:3


Domain:szut.de
Zone-Name:szut.de
Primary:ns81.domaincontrol.com
Mail:dns.jomax.net
Serial:2021022200
Refresh:28800
Retry:7200
Expire:604800
TTL:600
num Entries:2


Domain:admin.szut.de
Zone-Name:szut.de
Primary:ns81.domaincontrol.com
Mail:dns.jomax.net
Serial:2021022200
Refresh:28800
Retry:7200
Expire:604800
TTL:600
num Entries:1


Domain:www.admin.szut.de
Zone-Name:szut.de
Primary:ns81.domaincontrol.com
Mail:dns.jomax.net
Serial:2021022200
Refresh:28800
Retry:7200
Expire:604800
TTL:600
num Entries:1


5. Screenshots

Startaddress: https://admin.szut.de, address used: https://admin.szut.de/, Screenshot created 2021-06-10 13:58:40 +00:0

Mobil (412px x 732px)

163 milliseconds

Screenshot mobile - https://admin.szut.de/
Mobil + Landscape (732px x 412px)

182 milliseconds

Screenshot mobile landscape - https://admin.szut.de/
Screen (1280px x 1680px)

269 milliseconds

Screenshot Desktop - https://admin.szut.de/

Mobile- and other Chrome-Checks

widthheight
visual Viewport412732
content Size412732

Good: No horizontal scrollbar. Content-size width = visual Viewport width.

Chrome-Connection: secure. secure connection settings. The connection to this site is encrypted and authenticated using TLS 1.3, X25519, and AES_256_GCM.

Chrome-Resources : secure. all served securely. All resources on this page are served securely.

6. Url-Checks


:

:
DomainnameHttp-StatusredirectSec.G
• http://admin.szut.de/
195.37.105.110
301
https://admin.szut.de/
Html is minified: 100.00 %
0.030
A
Date: Thu, 10 Jun 2021 11:58:04 GMT
Server: Apache/2.4.29 (Ubuntu)
Location: https://admin.szut.de/
Content-Length: 309
Connection: close
Content-Type: text/html; charset=iso-8859-1

• http://www.admin.szut.de/
195.37.105.110
301
https://admin.szut.de/
Html is minified: 100.00 %
0.027
E
Date: Thu, 10 Jun 2021 11:58:04 GMT
Server: Apache/2.4.29 (Ubuntu)
Location: https://admin.szut.de/
Content-Length: 313
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://admin.szut.de/
195.37.105.110 GZip used - 334 / 556 - 39.93 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 104.51 %
2.190
B
small visible content (num chars: 102)
Index of / Name Last modified Size Description Apache/2.4.29 (Ubuntu) Server at admin.szut.de Port 443
Date: Thu, 10 Jun 2021 11:58:04 GMT
Server: Apache/2.4.29 (Ubuntu)
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 334
Connection: close
Content-Type: text/html;charset=UTF-8

• https://www.admin.szut.de/
195.37.105.110 GZip used - 338 / 560 - 39.64 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 104.48 %
2.196
B
small visible content (num chars: 106)
Index of / Name Last modified Size Description Apache/2.4.29 (Ubuntu) Server at www.admin.szut.de Port 443
Date: Thu, 10 Jun 2021 11:58:07 GMT
Server: Apache/2.4.29 (Ubuntu)
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 338
Connection: close
Content-Type: text/html;charset=UTF-8

• http://admin.szut.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
195.37.105.110
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://admin.szut.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 100.00 %
0.027
A
Visible Content: Moved Permanently The document has moved here . Apache/2.4.29 (Ubuntu) Server at admin.szut.de Port 80
Date: Thu, 10 Jun 2021 11:58:10 GMT
Server: Apache/2.4.29 (Ubuntu)
Location: https://admin.szut.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Length: 378
Connection: close
Content-Type: text/html; charset=iso-8859-1

• http://www.admin.szut.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
195.37.105.110
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
301
https://admin.szut.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Html is minified: 100.00 %
0.026
E
Visible Content: Moved Permanently The document has moved here . Apache/2.4.29 (Ubuntu) Server at www.admin.szut.de Port 80
Date: Thu, 10 Jun 2021 11:58:10 GMT
Server: Apache/2.4.29 (Ubuntu)
Location: https://admin.szut.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
Content-Length: 382
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://admin.szut.de/.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 %
2.150
A
Not Found
Visible Content: Not Found The requested URL was not found on this server. Apache/2.4.29 (Ubuntu) Server at admin.szut.de Port 443
Date: Thu, 10 Jun 2021 11:58:13 GMT
Server: Apache/2.4.29 (Ubuntu)
Content-Length: 276
Connection: close
Content-Type: text/html; charset=iso-8859-1

• https://195.37.105.110/
195.37.105.110 GZip used - 338 / 557 - 39.32 %
Inline-JavaScript (∑/total): 0/0 Inline-CSS (∑/total): 0/0
200

Html is minified: 104.50 %
2.177
N
Certificate error: RemoteCertificateNameMismatch
small visible content (num chars: 103)
Index of / Name Last modified Size Description Apache/2.4.29 (Ubuntu) Server at 195.37.105.110 Port 443
Date: Thu, 10 Jun 2021 11:58:10 GMT
Server: Apache/2.4.29 (Ubuntu)
Vary: Accept-Encoding
Content-Encoding: gzip
Content-Length: 338
Connection: close
Content-Type: text/html;charset=UTF-8

7. Comments


1. General Results, most used to calculate the result

Aname "admin.szut.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: 6872 (complete: 151507)
Agood: All ip addresses are public addresses
Warning: Only one ip address found: admin.szut.de has only one ip address.
Warning: Only one ip address found: www.admin.szut.de 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: admin.szut.de 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.admin.szut.de has no ipv6 address.
Agood: No asked Authoritative Name Server had a timeout
Agood: destination is https
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: All urls with http status 200/404 have a complete Content-Type header (MediaType / MediaSubType + correct charset)
Ahttp://admin.szut.de/ 195.37.105.110
301
https://admin.szut.de/
correct redirect http - https with the same domain name
Bhttps://admin.szut.de/ 195.37.105.110
200

Missing HSTS-Header
Bhttps://www.admin.szut.de/ 195.37.105.110
200

Missing HSTS-Header
Bhttps://admin.szut.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404

Missing HSTS-Header
CError - no preferred version www or non-www. Select one version as preferred version, then add a redirect https + not-preferred version to https + preferred version. Perhaps in your port 443 vHost something like "RewriteEngine on" + "RewriteCond %{SERVER_NAME} = example.com" + "ReWriteRule ^ https://www.example.com%{REQUEST_URI} [END,QSA,R=permanent]" (three rows, without the "). That should create a redirect https + example.com ⇒ https + www.example.com. Or switch both values to use the non-www version as your preferred version.
CError - more then one version with Http-Status 200. After all redirects, all users (and search engines) should see the same https url: Non-www or www, but not both with http status 200.
Ehttp://www.admin.szut.de/ 195.37.105.110
301
https://admin.szut.de/
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.
Nhttps://195.37.105.110/ 195.37.105.110
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 the same. So that domain doesn't require Server Name Indication (SNI), it's the primary certificate of that set of ip addresses.: Domain admin.szut.de, 1 ip addresses, 1 different http results.
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 the same. So that domain doesn't require Server Name Indication (SNI), it's the primary certificate of that set of ip addresses.: Domain www.admin.szut.de, 1 ip addresses, 1 different http results.

2. DNS- and NameServer - Checks

AInfo:: 27 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 2 Name Servers.
AInfo:: 27 Queries complete, 27 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
Bad (greater 8):: An average of 13.5 queries per domain name server required to find all ip addresses of all name servers.
AInfo:: 2 different Name Servers found: ns81.domaincontrol.com, ns82.domaincontrol.com, 2 Name Servers included in Delegation: ns81.domaincontrol.com, ns82.domaincontrol.com, 2 Name Servers included in 1 Zone definitions: ns81.domaincontrol.com, ns82.domaincontrol.com, 1 Name Servers listed in SOA.Primary: ns81.domaincontrol.com.
AGood: Only one SOA.Primary Name Server found.: ns81.domaincontrol.com.
AGood: SOA.Primary Name Server included in the delegation set.: ns81.domaincontrol.com.
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: ns81.domaincontrol.com, ns82.domaincontrol.com
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
Warning: No Name Server IPv6 address found. IPv6 is the future, so your name servers should be visible via IPv6.: 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: domaincontrol.com
Warning: All Name Servers from the same Country / IP location.: 2 Name Servers, 1 Countries: US
AInfo: Ipv4-Subnet-list: 2 Name Servers, 2 different subnets (first Byte): 173., 97., 2 different subnets (first two Bytes): 173.201., 97.74., 2 different subnets (first three Bytes): 173.201.69., 97.74.101.
AExcellent: Every Name Server IPv4-address starts with an unique Byte.
AGood: Nameserver supports TCP connections: 1 good Nameserver
AGood: Nameserver supports Echo Capitalization: 1 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 1 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 1 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.

3. 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: No https + http status 200 with inline CSS / JavaScript found
AGood: Every https result with status 200 has a minified Html-Content with a quota lower then 110 %.
https://admin.szut.de/ 195.37.105.110
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://www.admin.szut.de/ 195.37.105.110
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://195.37.105.110/ 195.37.105.110
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.
Warning: Images with a missing or too short Cache-Control header found. Browsers should cache and re-use these files. 3 image files without Cache-Control-Header, 0 with Cache-Control, but no max-age, 0 with Cache-Control max-age too short (minimum 7 days), 0 with Cache-Control long enough, 3 complete.
AGood: All checked attribute values are enclosed in quotation marks (" or ').
AGood: All img-elements have a valid alt-attribute.: 3 img-elements found.
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://admin.szut.de/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
404
2.150 seconds
Warning: 404 needs more then one second
ADuration: 72420 milliseconds, 72.420 seconds


8. Connections

DomainIPPortCert.ProtocolKeyExchangeStrengthCipherStrengthHashAlgorithmOCSP stapling
Domain/KeyExchangeIP/StrengthPort/CipherCert./StrengthProtocol/HashAlgorithmOCSP stapling
admin.szut.de
195.37.105.110
443
ok
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok
admin.szut.de
195.37.105.110
443
ok
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok
no http/2 via ALPN 
No SNI required - domain included in main certificate
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
No SNI required - domain included in main certificate
Tls.1.2
Tls.1.1
Tls.1.0
Chain (complete)
1CN=admin.szut.de

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


www.admin.szut.de
195.37.105.110
443
ok
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok

www.admin.szut.de
195.37.105.110
443
ok
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok
no http/2 via ALPN 
No SNI required - domain included in main certificate
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
No SNI required - domain included in main certificate
Tls.1.2
Tls.1.1
Tls.1.0
Chain (complete)
1CN=admin.szut.de

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


admin.szut.de
admin.szut.de
443
ok
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok

admin.szut.de
admin.szut.de
443
ok
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok
no http/2 via ALPN 
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
Tls.1.2
Tls.1.1
Tls.1.0
Chain (complete)
1CN=admin.szut.de

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


195.37.105.110
195.37.105.110
443
name does not match
Tls12
ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok

195.37.105.110
195.37.105.110
443
name does not match
Tls12

ECDH Ephermal
255
Aes128
128
Sha256
error checking OCSP stapling
ok
no http/2 via ALPN 
Cert sent without SNI
Tls.1.2
Tls.1.1
Tls.1.0
no http/2 via ALPN
Cert sent without SNI
Tls.1.2
Tls.1.1
Tls.1.0
Chain (complete)
1CN=admin.szut.de

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


9. Certificates

1.
1.
CN=admin.szut.de
20.03.2021
18.06.2021
5 days expired
admin.szut.de, www.admin.szut.de - 2 entries
1.
1.
CN=admin.szut.de
20.03.2021

18.06.2021
5 days expired
admin.szut.de, www.admin.szut.de - 2 entries

KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:04D684E4AB8FDC09E704D1E9868D44FECFCA
Thumbprint:C79DA3C13D49F99AC932D86B2BC738CD44220414
SHA256 / Certificate:j7HBCbWzKU8bjyiDkk+NM7tn7zheXVg+4drULHdDlwg=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):bc1c221223d0ab8e4f6ba7cb68590c9104cebe8a1be502ed44689a34e7d4356b
SHA256 hex / Subject Public Key Information (SPKI):bd0cdbf70420bb105ce58db5dd25373f1c456e8749a40434d613648344942398
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Good: Key isn't compromised
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
07.10.2020
29.09.2021
expires in 98 days


2.
CN=R3, O=Let's Encrypt, C=US
07.10.2020

29.09.2021
expires in 98 days


KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA256 With RSA-Encryption
Serial Number:400175048314A4C8218C84A90C16CDDF
Thumbprint:48504E974C0DAC5B5CD476C8202274B24C8C7172
SHA256 / Certificate:cwwb3NhfV85dwLunM+XxulqSWyp3HWQKJvekVCJNrTs=
SHA256 hex / Cert (DANE * 0 1):e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
SHA256 hex / PublicKey (DANE * 1 1):8d02536c887482bc34ff54e41d2ba659bf85b341a0a20afadb5813dcfbcf286d
SHA256 hex / Subject Public Key Information (SPKI):
SPKI checked via https://v1.pwnedkeys.com/spki-hash:Check unknown. No result 404 / 200
OCSP - Url:
OCSP - must staple:no
Certificate Transparency:no
Enhanced Key Usage:Serverauthentifizierung (1.3.6.1.5.5.7.3.1), Clientauthentifizierung (1.3.6.1.5.5.7.3.2)


3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000
30.09.2021
expires in 99 days


3.
CN=DST Root CA X3, O=Digital Signature Trust Co.
30.09.2000

30.09.2021
expires in 99 days


KeyalgorithmRSA encryption (2048 bit)
Signatur:SHA-1 with RSA Encryption
Serial Number:44AFB080D6A327BA893039862EF8406B
Thumbprint:DAC9024F54D8F6DF94935FB1732638CA6AD77C13
SHA256 / Certificate:BocmAzGnJAPZCfEF5pvPDTLhvSST/8bZIG0RvNZ3Bzk=
SHA256 hex / Cert (DANE * 0 1):0687260331a72403d909f105e69bcf0d32e1bd2493ffc6d9206d11bcd6770739
SHA256 hex / PublicKey (DANE * 1 1):563b3caf8cfef34c2335caf560a7a95906e8488462eb75ac59784830df9e5b2b
SHA256 hex / Subject Public Key Information (SPKI):29cc40db5e2de462a311cbbafaa1dc466960002335ecdf3317f2cd05c1d0bedf
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=R3, O=Let's Encrypt, C=US
0
0
1

CertSpotter-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
2384859224
leaf cert
CN=R3, O=Let's Encrypt, C=US
2021-03-20 06:34:19
2021-06-18 06:34:19
admin.szut.de, www.admin.szut.de - 2 entries



2. Source crt.sh - old and new certificates, sometimes very slow - only certificates with "not after" > 2019 are listed

Issuerlast 7 daysactivenum Certs
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
0 /0 new
0
7
CN=R3, O=Let's Encrypt, C=US
0 /0 new
0
2

CRT-IdIssuernot beforenot afterDomain namesLE-Duplicatenext LE
4243824628
leaf cert
CN=R3, O=Let's Encrypt, C=US
2021-03-20 05:34:19
2021-06-18 04:34:19
admin.szut.de, www.admin.szut.de
2 entries


3946469523
precert
CN=R3, O=Let's Encrypt, C=US
2021-01-18 13:46:09
2021-04-18 12:46:09
admin.szut.de, www.admin.szut.de
2 entries


3668038666
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-11-19 08:47:00
2021-02-17 08:47:00
admin.szut.de, www.admin.szut.de
2 entries


3404435192
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-09-20 06:20:48
2020-12-19 07:20:48
admin.szut.de, www.admin.szut.de
2 entries


3119379039
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-07-21 12:42:33
2020-10-19 12:42:33
admin.szut.de, www.admin.szut.de
2 entries


2890985697
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-05-22 03:42:45
2020-08-20 03:42:45
admin.szut.de, www.admin.szut.de
2 entries


2612225776
precert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-03-22 12:59:44
2020-06-20 11:59:44
admin.szut.de, www.admin.szut.de
2 entries


2368721759
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2020-01-22 03:34:49
2020-04-21 02:34:49
admin.szut.de, www.admin.szut.de
2 entries


2142934260
leaf cert
CN=Let's Encrypt Authority X3, O=Let's Encrypt, C=US
2019-11-23 00:10:52
2020-02-21 00:10:52
admin.szut.de, www.admin.szut.de
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://admin.szut.de/
195.37.105.110
a

4

0


0
0
0


img

1
148 Bytes
0
1
0
0
0
0

https://www.admin.szut.de/
195.37.105.110
a

4

0


0
0
0


img

1
148 Bytes
0
1
0
0
0
0

https://195.37.105.110/
195.37.105.110
a

4

0


0
0
0


img

1

0


0
0
0

Details

DomainnameHtml-Elementname/equiv/ property/relhref/src/contentHttpStatusmsgStatus
https://admin.szut.de/
195.37.105.110
a

?C=D;O=A


1
ok








a

?C=M;O=A


1
ok








a

?C=N;O=D


1
ok








a

?C=S;O=A


1
ok








img
src
/icons/blank.gif
200

1
ok
alt: [ICO]image/gif, missing X-Content-Type-Options nosniff

No Cache-Control header
No GZip - 148 Bytes





https://www.admin.szut.de/
195.37.105.110
a

?C=D;O=A


1
ok








a

?C=M;O=A


1
ok








a

?C=N;O=D


1
ok








a

?C=S;O=A


1
ok








img
src
/icons/blank.gif
200

1
ok
alt: [ICO]image/gif, missing X-Content-Type-Options nosniff

No Cache-Control header
No GZip - 148 Bytes





https://195.37.105.110/
195.37.105.110
a

?C=D;O=A


1
ok








a

?C=M;O=A


1
ok








a

?C=N;O=D


1
ok








a

?C=S;O=A


1
ok








img
src
/icons/blank.gif


1
ok
alt: [ICO]








12. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: ns81.domaincontrol.com, ns82.domaincontrol.com

QNr.DomainTypeNS used
1
com
NS
e.root-servers.net (2001:500:a8::e)

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
ns81.domaincontrol.com
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-245.akam.net, a11-64.akam.net, a20-65.akam.net, a6-66.akam.net, a8-67.akam.net, a9-67.akam.net, ans01.domaincontrol.com, ans02.domaincontrol.com

Answer: ans01.domaincontrol.com
2603:5:2111::23, 97.74.97.35

Answer: ans02.domaincontrol.com
173.201.65.35, 2603:5:2211::23
3
ns82.domaincontrol.com
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-245.akam.net, a11-64.akam.net, a20-65.akam.net, a6-66.akam.net, a8-67.akam.net, a9-67.akam.net, ans01.domaincontrol.com, ans02.domaincontrol.com

Answer: ans01.domaincontrol.com
2603:5:2111::23, 97.74.97.35

Answer: ans02.domaincontrol.com
173.201.65.35, 2603:5:2211::23
4
net
NS
m.root-servers.net (2001:dc3::35)

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
5
a1-245.akam.net
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-67.akam.net, a11-67.akam.net, a12-67.akam.net, a13-67.akam.net, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a3-67.akam.net, a4-67.akam.net, a5-67.akam.net, a6-67.akam.net, a7-67.akam.net, a9-67.akam.net

Answer: a1-67.akam.net
193.108.91.67, 2600:1401:2::43

Answer: a11-67.akam.net
84.53.139.67

Answer: a12-67.akam.net
184.26.160.67

Answer: a13-67.akam.net
2.22.230.67

Answer: a18-67.akam.net
95.101.36.67

Answer: a22-67.akam.net
23.211.61.67

Answer: a28-67.akam.net
95.100.173.67

Answer: a3-67.akam.net
96.7.49.67

Answer: a5-67.akam.net
95.100.168.67

Answer: a7-67.akam.net
23.61.199.67

Answer: a9-67.akam.net
184.85.248.67
6
a11-64.akam.net
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-67.akam.net, a11-67.akam.net, a12-67.akam.net, a13-67.akam.net, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a3-67.akam.net, a4-67.akam.net, a5-67.akam.net, a6-67.akam.net, a7-67.akam.net, a9-67.akam.net

Answer: a1-67.akam.net
193.108.91.67, 2600:1401:2::43

Answer: a11-67.akam.net
84.53.139.67

Answer: a12-67.akam.net
184.26.160.67

Answer: a13-67.akam.net
2.22.230.67

Answer: a18-67.akam.net
95.101.36.67

Answer: a22-67.akam.net
23.211.61.67

Answer: a28-67.akam.net
95.100.173.67

Answer: a3-67.akam.net
96.7.49.67

Answer: a5-67.akam.net
95.100.168.67

Answer: a7-67.akam.net
23.61.199.67

Answer: a9-67.akam.net
184.85.248.67
7
a20-65.akam.net
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-67.akam.net, a11-67.akam.net, a12-67.akam.net, a13-67.akam.net, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a3-67.akam.net, a4-67.akam.net, a5-67.akam.net, a6-67.akam.net, a7-67.akam.net, a9-67.akam.net

Answer: a1-67.akam.net
193.108.91.67, 2600:1401:2::43

Answer: a11-67.akam.net
84.53.139.67

Answer: a12-67.akam.net
184.26.160.67

Answer: a13-67.akam.net
2.22.230.67

Answer: a18-67.akam.net
95.101.36.67

Answer: a22-67.akam.net
23.211.61.67

Answer: a28-67.akam.net
95.100.173.67

Answer: a3-67.akam.net
96.7.49.67

Answer: a5-67.akam.net
95.100.168.67

Answer: a7-67.akam.net
23.61.199.67

Answer: a9-67.akam.net
184.85.248.67
8
a6-66.akam.net
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-67.akam.net, a11-67.akam.net, a12-67.akam.net, a13-67.akam.net, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a3-67.akam.net, a4-67.akam.net, a5-67.akam.net, a6-67.akam.net, a7-67.akam.net, a9-67.akam.net

Answer: a1-67.akam.net
193.108.91.67, 2600:1401:2::43

Answer: a11-67.akam.net
84.53.139.67

Answer: a12-67.akam.net
184.26.160.67

Answer: a13-67.akam.net
2.22.230.67

Answer: a18-67.akam.net
95.101.36.67

Answer: a22-67.akam.net
23.211.61.67

Answer: a28-67.akam.net
95.100.173.67

Answer: a3-67.akam.net
96.7.49.67

Answer: a5-67.akam.net
95.100.168.67

Answer: a7-67.akam.net
23.61.199.67

Answer: a9-67.akam.net
184.85.248.67
9
a8-67.akam.net
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-67.akam.net, a11-67.akam.net, a12-67.akam.net, a13-67.akam.net, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a3-67.akam.net, a4-67.akam.net, a5-67.akam.net, a6-67.akam.net, a7-67.akam.net, a9-67.akam.net

Answer: a1-67.akam.net
193.108.91.67, 2600:1401:2::43

Answer: a11-67.akam.net
84.53.139.67

Answer: a12-67.akam.net
184.26.160.67

Answer: a13-67.akam.net
2.22.230.67

Answer: a18-67.akam.net
95.101.36.67

Answer: a22-67.akam.net
23.211.61.67

Answer: a28-67.akam.net
95.100.173.67

Answer: a3-67.akam.net
96.7.49.67

Answer: a5-67.akam.net
95.100.168.67

Answer: a7-67.akam.net
23.61.199.67

Answer: a9-67.akam.net
184.85.248.67
10
a4-67.akam.net: 72.246.46.67
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-67.akam.net
193.108.91.67, 2600:1401:2::43

Answer: a11-67.akam.net
84.53.139.67

Answer: a12-67.akam.net
184.26.160.67

Answer: a13-67.akam.net
2.22.230.67

Answer: a18-67.akam.net
95.101.36.67

Answer: a22-67.akam.net
23.211.61.67

Answer: a28-67.akam.net
95.100.173.67

Answer: a3-67.akam.net
96.7.49.67

Answer: a5-67.akam.net
95.100.168.67

Answer: a7-67.akam.net
23.61.199.67

Answer: a9-67.akam.net
184.85.248.67
11
a6-67.akam.net
NS
a.gtld-servers.net (2001:503:a83e::2:30)

Answer: a1-67.akam.net, a11-67.akam.net, a12-67.akam.net, a13-67.akam.net, a18-67.akam.net, a22-67.akam.net, a28-67.akam.net, a3-67.akam.net, a4-67.akam.net, a5-67.akam.net, a6-67.akam.net, a7-67.akam.net, a9-67.akam.net

Answer: a1-67.akam.net
193.108.91.67, 2600:1401:2::43

Answer: a11-67.akam.net
84.53.139.67

Answer: a12-67.akam.net
184.26.160.67

Answer: a13-67.akam.net
2.22.230.67

Answer: a18-67.akam.net
95.101.36.67

Answer: a22-67.akam.net
23.211.61.67

Answer: a28-67.akam.net
95.100.173.67

Answer: a3-67.akam.net
96.7.49.67

Answer: a4-67.akam.net
72.246.46.67

Answer: a5-67.akam.net
95.100.168.67

Answer: a7-67.akam.net
23.61.199.67

Answer: a9-67.akam.net
184.85.248.67
12
a1-245.akam.net: 193.108.91.245
A
a1-67.akam.net (2600:1401:2::43)
13
a1-245.akam.net: 2600:1401:2::f5
AAAA
a1-67.akam.net (2600:1401:2::43)
14
a11-64.akam.net: 84.53.139.64
A
a1-67.akam.net (2600:1401:2::43)
15
a11-64.akam.net: 2600:1480:1::40
AAAA
a1-67.akam.net (2600:1401:2::43)
16
a20-65.akam.net: 95.100.175.65
A
a1-67.akam.net (2600:1401:2::43)
17
a20-65.akam.net: 2a02:26f0:67::41
AAAA
a1-67.akam.net (2600:1401:2::43)
18
a6-66.akam.net: 23.211.133.66
A
a1-67.akam.net (2600:1401:2::43)
19
a6-66.akam.net: 2600:1401:1::42
AAAA
a1-67.akam.net (2600:1401:2::43)
20
a8-67.akam.net: 2.16.40.67
A
a1-67.akam.net (2600:1401:2::43)
21
a8-67.akam.net: 2600:1403:a::43
AAAA
a1-67.akam.net (2600:1401:2::43)
22
a6-67.akam.net: 23.211.133.67
A
a1-67.akam.net (2600:1401:2::43)
23
a6-67.akam.net: 2600:1401:1::43
AAAA
a1-67.akam.net (2600:1401:2::43)
24
ns81.domaincontrol.com: 97.74.101.32
A
a1-245.akam.net (2600:1401:2::f5)
25
ns81.domaincontrol.com: No AAAA record found
AAAA
a1-245.akam.net (2600:1401:2::f5)
26
ns82.domaincontrol.com: 173.201.69.32
A
a1-245.akam.net (2600:1401:2::f5)
27
ns82.domaincontrol.com: No AAAA record found
AAAA
a1-245.akam.net (2600:1401:2::f5)


13. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
www.admin.szut.de
0

no CAA entry found
1
0
admin.szut.de
0

no CAA entry found
1
0
szut.de
0

no CAA entry found
1
0
de
0

no CAA entry found
1
0


14. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
szut.de
MS=ms52780991
ok
1
0
admin.szut.de

ok
1
0
www.admin.szut.de

ok
1
0
_acme-challenge.admin.szut.de

Name Error - The domain name does not exist
1
0
_acme-challenge.www.admin.szut.de

Name Error - The domain name does not exist
1
0
_acme-challenge.admin.szut.de.szut.de

Name Error - The domain name does not exist
1
0
_acme-challenge.admin.szut.de.admin.szut.de

Name Error - The domain name does not exist
1
0
_acme-challenge.www.admin.szut.de.admin.szut.de

Name Error - The domain name does not exist
1
0
_acme-challenge.www.admin.szut.de.www.admin.szut.de

Name Error - The domain name does not exist
1
0


15. Portchecks

No Port checks



Permalink: https://check-your-website.server-daten.de/?i=92112012-f1e7-4314-847a-43db157a425a


Last Result: https://check-your-website.server-daten.de/?q=admin.szut.de - 2021-06-10 13:57:34


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