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

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

 

V

 

Connect failure - perhaps firewall

 

Checked:
21.05.2024 06:56:04

 

Older results

 

V - 20.05.2024 04:18:23
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V - 13.05.2024 03:47:03
V - 13.05.2024 03:38:56

 

1. IP-Addresses

HostTypeIP-Addressis auth.∑ Queries∑ Timeout
dns1.nic.uk
A
213.248.216.1
Oxford/England/United Kingdom (GB) - Nominet
Hostname: dns1.nic.uk
yes
1
0

AAAA
2a01:618:400::1
Oxford/England/United Kingdom (GB) - Nominet

yes


www.dns1.nic.uk

Name Error
yes
1
0
*.nic.uk
A
Name Error
yes



AAAA
Name Error
yes



CNAME
Name Error
yes


*.dns1.nic.uk
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 5613, 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: 01.06.2024, 00:00:00 +, Signature-Inception: 11.05.2024, 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: uk

uk
1 DS RR in the parent zone found






DS with Algorithm 8, KeyTag 43876, DigestType 2 and Digest oQftKsG9FNkkFzvH6CehFTWCByOU+Scro34jU7xllgM=






1 RRSIG RR to validate DS RR found






RRSIG-Owner uk., Algorithm: 8, 1 Labels, original TTL: 86400 sec, Signature-expiration: 02.06.2024, 17:00:00 +, Signature-Inception: 20.05.2024, 16:00:00 +, KeyTag 5613, Signer-Name: (root)






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 5613 used to validate the DS RRSet in the parent zone






2 DNSKEY RR found






Public Key with Algorithm 8, KeyTag 43056, Flags 256






Public Key with Algorithm 8, KeyTag 43876, Flags 257 (SEP = Secure Entry Point)






1 RRSIG RR to validate DNSKEY RR found






RRSIG-Owner uk., Algorithm: 8, 1 Labels, original TTL: 3600 sec, Signature-expiration: 18.06.2024, 23:35:41 +, Signature-Inception: 14.05.2024, 23:27:24 +, KeyTag 43876, Signer-Name: uk






• Status: Good - Algorithmus 8 and DNSKEY with KeyTag 43876 used to validate the DNSKEY RRSet






• Status: Valid Chain of trust. Parent-DS with Algorithm 8, KeyTag 43876, DigestType 2 and Digest "oQftKsG9FNkkFzvH6CehFTWCByOU+Scro34jU7xllgM=" validates local Key with the same values, Key ist Secure Entry Point (SEP) of the zone



Zone: nic.uk

nic.uk
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 "uu9mnfctqd6d5af5jqk8jtrpm54djovg" between the hashed NSEC3-owner "uu98846i7jd4i602avcj5s9k7udj6j2p" and the hashed NextOwner "uua85qd6bomtjn640dbac1mebh69k9vl". So the parent zone confirmes the not-existence of a DS RR.
Bitmap: NS, DS, RRSIG Validated: RRSIG-Owner uu98846i7jd4i602avcj5s9k7udj6j2p.uk., Algorithm: 8, 2 Labels, original TTL: 10800 sec, Signature-expiration: 24.06.2024, 01:43:42 +, Signature-Inception: 20.05.2024, 01:35:42 +, KeyTag 43056, Signer-Name: uk






DS-Query in the parent zone sends valid NSEC3 RR with the Hash "u1fmklfv3rdcnamdc64sekgcdp05bbiu" as Owner. That's the Hash of "uk" with the NextHashedOwnerName "u1g6avnc37mt4haj92es0kp81jt1iljn". So that domain name is the Closest Encloser of "nic.uk". Opt-Out: True.
Bitmap: NS, SOA, RRSIG, DNSKEY, NSEC3PARAM Validated: RRSIG-Owner u1fmklfv3rdcnamdc64sekgcdp05bbiu.uk., Algorithm: 8, 2 Labels, original TTL: 10800 sec, Signature-expiration: 18.06.2024, 21:12:32 +, Signature-Inception: 14.05.2024, 20:15:48 +, KeyTag 43056, Signer-Name: uk






0 DNSKEY RR found









Zone: dns1.nic.uk

dns1.nic.uk
0 DS RR in the parent zone found






0 DNSKEY RR found









Zone: www.dns1.nic.uk

www.dns1.nic.uk
0 DS RR in the parent zone found

 

3. Name Servers

DomainNameserverNS-IP
www.dns1.nic.uk
•  dns1.nic.uk

dns1.nic.uk
•  dns1.nic.uk
213.248.216.1
Oxford/England/United Kingdom (GB) - Nominet		•

• 
2a01:618:400::1
Oxford/England/United Kingdom (GB) - Nominet		•
nic.uk
•  dns1.nic.uk
213.248.216.1
Oxford/England/United Kingdom (GB) - Nominet		•

• 
2a01:618:400::1
Oxford/England/United Kingdom (GB) - Nominet		•

•  dns2.nic.uk
103.49.80.1
Oxford/England/United Kingdom (GB) - NOMINET-NS		•

• 
2401:fd80:400::1
Ashburn/Virginia/United States (US) - Nominet UK		•

•  dns3.nic.uk
213.248.220.1
London/England/United Kingdom (GB) - Nominet		•

• 
2a01:618:404::1
Oxford/England/United Kingdom (GB) - Nominet		•

•  dns4.nic.uk
43.230.48.1
Oxford/England/United Kingdom (GB) - NOMINET-NS		•

• 
2401:fd80:404::1
Sydney/New South Wales/Australia (AU) - Nominet UK		•

•  nsa.nic.uk / TLD_Host2.Frankfurt_Node1
156.154.100.3
New York/United States (US) - NeuStar, Inc.		•

• 
2001:502:ad09::3
Herndon/Virginia/United States (US) - NeuStar, Inc.		•

•  nsb.nic.uk / TLD_Host1.Frankfurt_Node1
156.154.101.3
New York/United States (US) - NeuStar, Inc.		•

• 
2001:502:2eda::3
Herndon/Virginia/United States (US) - NeuStar, Inc.		•

•  nsc.nic.uk / TLD_Host2.Frankfurt_Node1
156.154.102.3
New York/United States (US) - NeuStar, Inc.		•

• 
2610:a1:1009::3
Ashburn/Virginia/United States (US) - NeuStar		•

•  nsd.nic.uk / TLD_Host1.Frankfurt_Node1
156.154.103.3
New York/United States (US) - NeuStar, Inc.		•

• 
2610:a1:1010::3
Herndon/Virginia/United States (US) - NeuStar		•
uk
•  dns1.nic.uk
•

•  dns2.nic.uk
•

•  dns3.nic.uk
•

•  dns4.nic.uk
•

•  nsa.nic.uk / TLD_Host1.Frankfurt_Node1
•

•  nsb.nic.uk / TLD_Host2.Frankfurt_Node1
•

•  nsc.nic.uk / TLD_Host2.Frankfurt_Node1
•

•  nsd.nic.uk / TLD_Host1.Frankfurt_Node1
•

 

4. SOA-Entries


Domain:uk
Zone-Name:uk
Primary:dns1.nic.uk
Mail:hostmaster.nic.uk
Serial:1716267082
Refresh:7200
Retry:900
Expire:2419200
TTL:10800
num Entries:8


Domain:nic.uk
Zone-Name:nic.uk
Primary:dns1.nic.uk
Mail:hostmaster.nic.uk
Serial:2021100603
Refresh:7200
Retry:300
Expire:2419200
TTL:172800
num Entries:16


Domain:dns1.nic.uk
Zone-Name:nic.uk
Primary:dns1.nic.uk
Mail:hostmaster.nic.uk
Serial:2021100603
Refresh:7200
Retry:300
Expire:2419200
TTL:172800
num Entries:2


Domain:www.dns1.nic.uk
Zone-Name:
Primary:
Mail:
Serial:
Refresh:
Retry:
Expire:
TTL:
num Entries:1


5. Screenshots

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

 

 

6. Url-Checks

DomainnameHttp-StatusredirectSec.G
• http://dns1.nic.uk/
213.248.216.1
-16


1.077
V
UnknownError - Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte. [::ffff:213.248.216.1]:80 (213.248.216.1:80)

• http://dns1.nic.uk/
2a01:618:400::1
-16


1.076
V
UnknownError - Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte. [2a01:618:400::1]:80 ([2a01:618:400::1]:80)

• https://dns1.nic.uk/
213.248.216.1
-16


1.067
V
UnknownError - Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte. [::ffff:213.248.216.1]:443 (213.248.216.1:443)

• https://dns1.nic.uk/
2a01:618:400::1
-16


1.073
V
UnknownError - Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte. [2a01:618:400::1]:443 ([2a01:618:400::1]:443)

• http://dns1.nic.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
213.248.216.1
-16


1.074
V
UnknownError - Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte. [::ffff:213.248.216.1]:80 (213.248.216.1:80)
Visible Content:

• http://dns1.nic.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de
2a01:618:400::1
-16


1.076
V
UnknownError - Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte. [2a01:618:400::1]:80 ([2a01:618:400::1]:80)
Visible Content:

• https://213.248.216.1/
213.248.216.1
-16


1.073
V
UnknownError - Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte. [::ffff:213.248.216.1]:443 (213.248.216.1:443)

• https://[2a01:0618:0400:0000:0000:0000:0000:0001]/
2a01:618:400::1
-16


1.080
V
UnknownError - Es konnte keine Verbindung hergestellt werden, da der Zielcomputer die Verbindung verweigerte. [2a01:618:400::1]:443 ([2a01:618:400::1]:443)

 

7. Comments


1. General Results, most used to calculate the result

Aname "dns1.nic.uk" is subdomain, public suffix is ".uk", top-level-domain is ".uk", top-level-domain-type is "country-code", Country is United Kingdom of Great Britain and Northern Ireland, tld-manager is "Nominet UK", num .uk-domains preloaded: 5063 (complete: 244198)
AGood: All ip addresses are public addresses
AGood: Minimal 2 ip addresses per domain name found: dns1.nic.uk has 2 different ip addresses (authoritative).
AGood: Ipv4 and Ipv6 addresses per domain name found: dns1.nic.uk has 1 ipv4, 1 ipv6 addresses
AGood: No asked Authoritative Name Server had a timeout
ADNS: "Name Error" means: No www-dns-entry defined. This isn't a problem
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: More then one ip address per domain name found, checking all ip addresses the same http status and the same certificate found: Domain dns1.nic.uk, 2 ip addresses.
Info: Checking the ip addresses of that domain name not exact one certificate found. So it's impossible to check if that domain requires Server Name Indication (SNI).: Domain dns1.nic.uk, 2 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.dns1.nic.uk

2. Header-Checks

U

No https result with http status 2** or 4** (standard-check) found, no header checked.

3. DNS- and NameServer - Checks

AInfo:: 1 Root-climbing DNS Queries required to find all IPv4- and IPv6-Addresses of 0 Name Servers.
AInfo:: 1 Queries complete, 1 with IPv6, 0 with IPv4.
AGood: All DNS Queries done via IPv6.
AInfo:: 8 different Name Servers found: dns1.nic.uk, dns2.nic.uk, dns3.nic.uk, dns4.nic.uk, nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk, 8 Name Servers included in Delegation: dns1.nic.uk, dns2.nic.uk, dns3.nic.uk, dns4.nic.uk, nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk, 8 Name Servers included in 1 Zone definitions: dns1.nic.uk, dns2.nic.uk, dns3.nic.uk, dns4.nic.uk, nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk, 1 Name Servers listed in SOA.Primary: dns1.nic.uk.
AGood: Only one SOA.Primary Name Server found.: dns1.nic.uk.
AGood: SOA.Primary Name Server included in the delegation set.: dns1.nic.uk.
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: dns1.nic.uk, dns2.nic.uk, dns3.nic.uk, dns4.nic.uk, nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk
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: 8 different Name Servers found
AGood: All name servers have ipv4- and ipv6-addresses.: 8 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.: 8 Name Servers, 1 Top Level Domain: uk
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: nic.uk
AGood: Name servers with different Country locations found: 8 Name Servers, 3 Countries: AU, GB, US
AInfo: Ipv4-Subnet-list: 8 Name Servers, 4 different subnets (first Byte): 103., 156., 213., 43., 4 different subnets (first two Bytes): 103.49., 156.154., 213.248., 43.230., 8 different subnets (first three Bytes): 103.49.80., 156.154.100., 156.154.101., 156.154.102., 156.154.103., 213.248.216., 213.248.220., 43.230.48.
AGood: Name Server IPv4-addresses from different subnet found:
AInfo: IPv6-Subnet-list: 8 Name Servers with IPv6, 4 different subnets (first block): 2001:, 2401:, 2610:, 2a01:, 4 different subnets (first two blocks): 2001:0502:, 2401:fd80:, 2610:00a1:, 2a01:0618:, 8 different subnets (first three blocks): 2001:0502:2eda:, 2001:0502:ad09:, 2401:fd80:0400:, 2401:fd80:0404:, 2610:00a1:1009:, 2610:00a1:1010:, 2a01:0618:0400:, 2a01:0618:0404:, 8 different subnets (first four blocks): 2001:0502:2eda:0000:, 2001:0502:ad09:0000:, 2401:fd80:0400:0000:, 2401:fd80:0404:0000:, 2610:00a1:1009:0000:, 2610:00a1:1010:0000:, 2a01:0618:0400:0000:, 2a01:0618:0404:0000:
AGood: Name Server IPv6 addresses from different subnets found.
AGood: Nameserver supports TCP connections: 2 good Nameserver
AGood: Nameserver supports Echo Capitalization: 2 good Nameserver
AGood: Nameserver supports EDNS with max. 512 Byte Udp payload, message is smaller: 2 good Nameserver
AGood: Nameserver has passed 10 EDNS-Checks (OP100, FLAGS, V1, V1OP100, V1FLAGS, DNSSEC, V1DNSSEC, NSID, COOKIE, CLIENTSUBNET): 2 good Nameserver
Nameserver doesn't pass all EDNS-Checks: dns1.nic.uk: OP100: no result. FLAGS: no result. V1: no result. V1OP100: no result. V1FLAGS: no result. DNSSEC: no result. V1DNSSEC: no result. NSID: no result. COOKIE: no result. CLIENTSUBNET: no result.
Nameserver doesn't pass all EDNS-Checks: dns1.nic.uk: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: ok. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: dns1.nic.uk / 213.248.216.1: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: dns1.nic.uk / 2a01:618:400::1: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: dns2.nic.uk: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: ok. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: dns2.nic.uk / 103.49.80.1: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: dns2.nic.uk / 2401:fd80:400::1: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: dns3.nic.uk: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: ok. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: dns3.nic.uk / 213.248.220.1: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: dns3.nic.uk / 2a01:618:404::1: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: dns4.nic.uk: OP100: ok. FLAGS: ok. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: ok. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: dns4.nic.uk / 43.230.48.1: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
Nameserver doesn't pass all EDNS-Checks: dns4.nic.uk / 2401:fd80:404::1: OP100: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found, no OPT100 expected, no OPT100 found. FLAGS: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1: ok. V1OP100: ok. V1FLAGS: ok. DNSSEC: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. V1DNSSEC: ok. NSID: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. COOKIE: SOA expected, but NOT found, NOERR expectend and NOERR found, Version 0 expectend and found. CLIENTSUBNET: ok.
AGood: All SOA have the same Serial Number
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

http://dns1.nic.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 213.248.216.1
-16

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.
http://dns1.nic.uk/.well-known/acme-challenge/check-your-website-dot-server-daten-dot-de 2a01:618:400::1
-16

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.
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
ADuration: 74930 milliseconds, 74.930 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)

No CertSpotter - CT-Log entries found

 

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/

Small Code update, wait one minute

 

13. Nameserver - IP-Adresses

Required Root-climbing DNS-Queries to find ip addresses of all Name Servers: dns1.nic.uk, dns2.nic.uk, dns3.nic.uk, dns4.nic.uk, nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk

 

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

Answer: dns1.nic.uk, dns2.nic.uk, dns3.nic.uk, dns4.nic.uk, nsa.nic.uk, nsb.nic.uk, nsc.nic.uk, nsd.nic.uk

 

14. CAA - Entries

DomainnameflagNameValue∑ Queries∑ Timeout
dns1.nic.uk
0

no CAA entry found
1
0
nic.uk
0

no CAA entry found
1
0
uk
0

no CAA entry found
1
0

 

15. TXT - Entries

DomainnameTXT EntryStatus∑ Queries∑ Timeout
nic.uk
v=spf1 mx ip4:213.248.242.48/24 ip4:213.248.242.49/24 ip6:2a01:618:8009:0:264f:3ac4:83a1:f047/64 ip6:2a01:618:8009:0:20fa:1a15:82ff:e618/64 ?all
ok
1
0
dns1.nic.uk

ok
1
0
_acme-challenge.dns1.nic.uk

Name Error - The domain name does not exist
1
0
_acme-challenge.dns1.nic.uk.nic.uk

Name Error - The domain name does not exist
1
0
_acme-challenge.dns1.nic.uk.dns1.nic.uk

Name Error - The domain name does not exist
1
0

 

16. DomainService - Entries

No DomainServiceEntries entries found

 

 

17. Cipher Suites

No results

 

18. Portchecks

DomainIPPortDescriptionResultAnswer
dns1.nic.uk
213.248.216.1
21
FTP



dns1.nic.uk
213.248.216.1
21
FTP



dns1.nic.uk
213.248.216.1
22
SSH



dns1.nic.uk
213.248.216.1
22
SSH



dns1.nic.uk
213.248.216.1
25
SMTP



dns1.nic.uk
213.248.216.1
25
SMTP



dns1.nic.uk
213.248.216.1
53
DNS
open


dns1.nic.uk
213.248.216.1
53
DNS
open


dns1.nic.uk
213.248.216.1
110
POP3



dns1.nic.uk
213.248.216.1
110
POP3



dns1.nic.uk
213.248.216.1
143
IMAP



dns1.nic.uk
213.248.216.1
143
IMAP



dns1.nic.uk
213.248.216.1
465
SMTP (encrypted)



dns1.nic.uk
213.248.216.1
465
SMTP (encrypted)



dns1.nic.uk
213.248.216.1
587
SMTP (encrypted, submission)



dns1.nic.uk
213.248.216.1
587
SMTP (encrypted, submission)



dns1.nic.uk
213.248.216.1
993
IMAP (encrypted)



dns1.nic.uk
213.248.216.1
993
IMAP (encrypted)



dns1.nic.uk
213.248.216.1
995
POP3 (encrypted)



dns1.nic.uk
213.248.216.1
995
POP3 (encrypted)



dns1.nic.uk
213.248.216.1
1433
MS SQL



dns1.nic.uk
213.248.216.1
1433
MS SQL



dns1.nic.uk
213.248.216.1
2082
cPanel (http)



dns1.nic.uk
213.248.216.1
2082
cPanel (http)



dns1.nic.uk
213.248.216.1
2083
cPanel (https)



dns1.nic.uk
213.248.216.1
2083
cPanel (https)



dns1.nic.uk
213.248.216.1
2086
WHM (http)



dns1.nic.uk
213.248.216.1
2086
WHM (http)



dns1.nic.uk
213.248.216.1
2087
WHM (https)



dns1.nic.uk
213.248.216.1
2087
WHM (https)



dns1.nic.uk
213.248.216.1
2089
cPanel Licensing



dns1.nic.uk
213.248.216.1
2089
cPanel Licensing



dns1.nic.uk
213.248.216.1
2095
cPanel Webmail (http)



dns1.nic.uk
213.248.216.1
2095
cPanel Webmail (http)



dns1.nic.uk
213.248.216.1
2096
cPanel Webmail (https)



dns1.nic.uk
213.248.216.1
2096
cPanel Webmail (https)



dns1.nic.uk
213.248.216.1
2222
DirectAdmin (http)



dns1.nic.uk
213.248.216.1
2222
DirectAdmin (http)



dns1.nic.uk
213.248.216.1
2222
DirectAdmin (https)



dns1.nic.uk
213.248.216.1
2222
DirectAdmin (https)



dns1.nic.uk
213.248.216.1
3306
mySql



dns1.nic.uk
213.248.216.1
3306
mySql



dns1.nic.uk
213.248.216.1
5224
Plesk Licensing



dns1.nic.uk
213.248.216.1
5224
Plesk Licensing



dns1.nic.uk
213.248.216.1
5432
PostgreSQL



dns1.nic.uk
213.248.216.1
5432
PostgreSQL



dns1.nic.uk
213.248.216.1
8080
Ookla Speedtest (http)



dns1.nic.uk
213.248.216.1
8080
Ookla Speedtest (http)



dns1.nic.uk
213.248.216.1
8080
Ookla Speedtest (https)



dns1.nic.uk
213.248.216.1
8080
Ookla Speedtest (https)



dns1.nic.uk
213.248.216.1
8083
VestaCP http



dns1.nic.uk
213.248.216.1
8083
VestaCP http



dns1.nic.uk
213.248.216.1
8083
VestaCP https



dns1.nic.uk
213.248.216.1
8083
VestaCP https



dns1.nic.uk
213.248.216.1
8443
Plesk Administration (https)



dns1.nic.uk
213.248.216.1
8443
Plesk Administration (https)



dns1.nic.uk
213.248.216.1
8447
Plesk Installer + Updates



dns1.nic.uk
213.248.216.1
8447
Plesk Installer + Updates



dns1.nic.uk
213.248.216.1
8880
Plesk Administration (http)



dns1.nic.uk
213.248.216.1
8880
Plesk Administration (http)



dns1.nic.uk
213.248.216.1
10000
Webmin (http)



dns1.nic.uk
213.248.216.1
10000
Webmin (http)



dns1.nic.uk
213.248.216.1
10000
Webmin (https)



dns1.nic.uk
213.248.216.1
10000
Webmin (https)



dns1.nic.uk
2a01:618:400::1
21
FTP



dns1.nic.uk
2a01:618:400::1
21
FTP



dns1.nic.uk
2a01:618:400::1
22
SSH



dns1.nic.uk
2a01:618:400::1
22
SSH



dns1.nic.uk
2a01:618:400::1
25
SMTP



dns1.nic.uk
2a01:618:400::1
25
SMTP



dns1.nic.uk
2a01:618:400::1
53
DNS
open


dns1.nic.uk
2a01:618:400::1
53
DNS
open


dns1.nic.uk
2a01:618:400::1
110
POP3



dns1.nic.uk
2a01:618:400::1
110
POP3



dns1.nic.uk
2a01:618:400::1
143
IMAP



dns1.nic.uk
2a01:618:400::1
143
IMAP



dns1.nic.uk
2a01:618:400::1
465
SMTP (encrypted)



dns1.nic.uk
2a01:618:400::1
465
SMTP (encrypted)



dns1.nic.uk
2a01:618:400::1
587
SMTP (encrypted, submission)



dns1.nic.uk
2a01:618:400::1
587
SMTP (encrypted, submission)



dns1.nic.uk
2a01:618:400::1
993
IMAP (encrypted)



dns1.nic.uk
2a01:618:400::1
993
IMAP (encrypted)



dns1.nic.uk
2a01:618:400::1
995
POP3 (encrypted)



dns1.nic.uk
2a01:618:400::1
995
POP3 (encrypted)



dns1.nic.uk
2a01:618:400::1
1433
MS SQL



dns1.nic.uk
2a01:618:400::1
1433
MS SQL



dns1.nic.uk
2a01:618:400::1
2082
cPanel (http)



dns1.nic.uk
2a01:618:400::1
2082
cPanel (http)



dns1.nic.uk
2a01:618:400::1
2083
cPanel (https)



dns1.nic.uk
2a01:618:400::1
2083
cPanel (https)



dns1.nic.uk
2a01:618:400::1
2086
WHM (http)



dns1.nic.uk
2a01:618:400::1
2086
WHM (http)



dns1.nic.uk
2a01:618:400::1
2087
WHM (https)



dns1.nic.uk
2a01:618:400::1
2087
WHM (https)



dns1.nic.uk
2a01:618:400::1
2089
cPanel Licensing



dns1.nic.uk
2a01:618:400::1
2089
cPanel Licensing



dns1.nic.uk
2a01:618:400::1
2095
cPanel Webmail (http)



dns1.nic.uk
2a01:618:400::1
2095
cPanel Webmail (http)



dns1.nic.uk
2a01:618:400::1
2096
cPanel Webmail (https)



dns1.nic.uk
2a01:618:400::1
2096
cPanel Webmail (https)



dns1.nic.uk
2a01:618:400::1
2222
DirectAdmin (http)



dns1.nic.uk
2a01:618:400::1
2222
DirectAdmin (http)



dns1.nic.uk
2a01:618:400::1
2222
DirectAdmin (https)



dns1.nic.uk
2a01:618:400::1
2222
DirectAdmin (https)



dns1.nic.uk
2a01:618:400::1
3306
mySql



dns1.nic.uk
2a01:618:400::1
3306
mySql



dns1.nic.uk
2a01:618:400::1
5224
Plesk Licensing



dns1.nic.uk
2a01:618:400::1
5224
Plesk Licensing



dns1.nic.uk
2a01:618:400::1
5432
PostgreSQL



dns1.nic.uk
2a01:618:400::1
5432
PostgreSQL



dns1.nic.uk
2a01:618:400::1
8080
Ookla Speedtest (http)



dns1.nic.uk
2a01:618:400::1
8080
Ookla Speedtest (http)



dns1.nic.uk
2a01:618:400::1
8080
Ookla Speedtest (https)



dns1.nic.uk
2a01:618:400::1
8080
Ookla Speedtest (https)



dns1.nic.uk
2a01:618:400::1
8083
VestaCP http



dns1.nic.uk
2a01:618:400::1
8083
VestaCP http



dns1.nic.uk
2a01:618:400::1
8083
VestaCP https



dns1.nic.uk
2a01:618:400::1
8083
VestaCP https



dns1.nic.uk
2a01:618:400::1
8443
Plesk Administration (https)



dns1.nic.uk
2a01:618:400::1
8443
Plesk Administration (https)



dns1.nic.uk
2a01:618:400::1
8447
Plesk Installer + Updates



dns1.nic.uk
2a01:618:400::1
8447
Plesk Installer + Updates



dns1.nic.uk
2a01:618:400::1
8880
Plesk Administration (http)



dns1.nic.uk
2a01:618:400::1
8880
Plesk Administration (http)



dns1.nic.uk
2a01:618:400::1
10000
Webmin (http)



dns1.nic.uk
2a01:618:400::1
10000
Webmin (http)



dns1.nic.uk
2a01:618:400::1
10000
Webmin (https)



dns1.nic.uk
2a01:618:400::1
10000
Webmin (https)



 

 

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