nic.uk
Observed 2026-07-12T20:51:31.254Z (10h ago). Every field below was attested with an Ed25519 signature at scan time.
Not responding
Runs onCloudflare
Registered withNominet UK
1 subdomain · tranco_5k
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat nic.uk actually stands on - every host below is a signed observation
nic.uk
NS
nsc.nic.uknsb.nic.ukdns3.nic.ukdns1.nic.uk+4 more
nic.ukanswers its DNS
MX
mxb.nic.ukmxa.nic.ukrav.nic.uk
nic.ukreceives its email
HTTPS probe
server_error
Server error (5xx) 530 Server Error
HTTP status530
Servercloudflare
TLS protocolHTTP/2
TLS issuernot observed
Behind Cloudflareyes
Response time153 ms
DNS resolutionNOERROR
Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".
DNS Records
MX 3
10mxb.nic.uk10mxa.nic.uk5rav.nic.uk
TXT 2
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 ~allv=DMARC1; p=quarantine; sp=reject; pct=100; adkim=s; aspf=s; fo=1; ri=86400; rua=mailto:3d39e10a05c5183@rep.dmarcanalyzer.com;ruf=mailto:3d39e10a05c5183@for.dmarcanalyzer.com;
NS 8
nsc.nic.uknsb.nic.ukdns3.nic.ukdns1.nic.ukdns2.nic.uknsd.nic.ukdns4.nic.uknsa.nic.uk
SOA 1
dns1.nic.uk hostmaster.nic.uk
TLS Certificates (0)
None.
Subdomains (1)
The proof
Signed at scan time. Check the math yourself. Every line above is part of one signed observation. Re-hash it and check the Ed25519 signature in your own browser; nothing leaves your machine.
Verify this receiptEd25519 Receipt
- Receipt ID
28eaf127-69f8-45cf-934a-48691d6cfaf6- Output Hash
f6f98f455e57fa6f79c6f4276a57422d11cc7dc5aa42928b94a0f4fbf3358b59- Signature
ed25519:cb0c66d3e9c5c9a4b6c378550a6127efe01b863eb38fc20084eda8046eb6c474c955df98f964ea8b70a00daaeb5d6096ab8ea3e6aa1ab3fb3f714977c8eb8109- Public Key
ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b- Parent
(genesis)- Plane
- fast