ucl.ac.uk
Observed Jul 21, 2026, 19:37 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation — watch it for 5-minute checks.
Up right now
Runs onCloudflare
Email byMicrosoft 365
Secured bySectigo
Also usesDocuSignMiroAtlassianGoogle Search Console
1 subdomain · push_legacy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ucl.ac.uk actually stands on - every host below is a signed observation
ucl.ac.uk
A / AAAA
144.82.250.24
Cloudflareserves the site
NS
dns-ns1.ucl.ac.ukns1.cs.ucl.ac.ukdns-ns0.ucl.ac.uk
ucl.ac.ukanswers its DNS
MX
ucl-ac-uk.mail.protection.outlook.com
Microsoft 365receives its email
TLS
www.ucl.ac.uk
Sectigo Limitedissued its certificate
DNS Records
A 1
144.82.250.24
MX 1
0ucl-ac-uk.mail.protection.outlook.com
TXT 25
docusign=fbe753b6-c1c4-44e9-b9f7-820dbcfe7290miro-verification=6d10fbfcfd7b72d871b65517bcf29a957538dfe9autodesk-domain-verification=MT_jq-adQj1qOV6Ep4ceUxpHCrLgfG7EXXoLsSR8mEk-0mKQOPiga_se0TfO_47rkp5hg8g3y0jkkmp82pq9hjb6w4bfatlassian-domain-verification=g-InG/mbc6+5Anw47Pk/jq22zDbpsK2iFnuAs5Vv5vivQWUd28tubN9WUKcX2tSjinfoblox-domain-mastery=4fdb521e5350b68adfcbbcc3f658d4aaf0c88bc5fd1472b7e9649ae3b1b1fe8832F341B167E69871CD1D85804EE842639FD45C12E1_mov300ry8np4mpicwdajkqzthf9aq13
NS 3
dns-ns1.ucl.ac.ukns1.cs.ucl.ac.ukdns-ns0.ucl.ac.uk
SOA 1
dns-ns0.ucl.ac.uk systems.ucl.ac.uk
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
www.ucl.ac.uk |
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA EV R36 | Sat, 14 Nov 2026 23:59:59 +0000 |
Sectigo Public Server Authentication CA EV R36 |
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication Root R46 | Fri, 21 Mar 2036 23:59:59 +0000 |
Sectigo Public Server Authentication Root R46 |
C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority | Mon, 18 Jan 2038 23:59:59 +0000 |
USERTrust RSA Certification Authority |
C=US, ST=New Jersey, L=Jersey City, O=The USERTRUST Network, CN=USERTrust RSA Certification Authority | Mon, 18 Jan 2038 23:59:59 +0000 |
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
rcpt_7ba6df24408c6c07- Output Hash
4ce453903b583149808c5a46eaa1476d9236bb04f0e1a2af35b273f31d341b25- Signature
ed25519:1493f342383b014f6bc22ee52c6e95d728e45c239d1c22644c99f55a66523da04166cdcca6330e8d751801e4f83a7ed970376a4f6e175a268d14bfa37245ff00- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast