kcl.ac.uk
Observed Jul 18, 2026, 12:23 UTC (3d ago). Every field below was attested with an Ed25519 signature at scan time.
Up right now
Runs onJisc Services Limited
Email byMicrosoft 365
Secured bySectigo
Also usesGoogle Search ConsoleAtlassianHubSpotDocuSign
push_legacy
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat kcl.ac.uk actually stands on - every host below is a signed observation
kcl.ac.uk
A / AAAA
137.73.130.135
Jisc Services Limitedserves the site
NS
ndc-cns-ext-01.kcl.ac.ukns3.ja.netsdc-cns-ext-01.kcl.ac.uk
kcl.ac.uk + ja.netanswers its DNS
MX
kcl-ac-uk.mail.protection.outlook.com
Microsoft 365receives its email
TLS
*.kcl.ac.uk
Sectigo Limitedissued its certificate
DNS Records
A 1
137.73.130.135
MX 1
10kcl-ac-uk.mail.protection.outlook.com
TXT 24
d365mktkey=1eyk3mas6821z0hk0klgty9e1d365mktkey=30fzj5wnfwh30u4b1sheedarid365mktkey=3m45obrzfsf55yx7bodvq2e4yQuoVadis=464926dd-3346-40d0-9c07-d83b020145a2amazonses:kC7acEJaQ3xz8xKZ3nihcIuYwq6gqpVYx3P40/k03xM=i9b7v1h1kapv6ej5qbf63bllt3f5prjl21ovt00uh84dq5fif5svlhar5275808q50u0rgoi2hv2thgoogle-site-verification=unigyXqSZPjlPT6WqAjMbQxLN2y7R2rRpdyIx1ADm7od365mktkey=qaOemMFxXpKH0bv5cCmrcyoffiFQndAOyAxBxVT5PZcx
NS 3
ndc-cns-ext-01.kcl.ac.ukns3.ja.netsdc-cns-ext-01.kcl.ac.uk
SOA 1
ndc-cns-ext-01.kcl.ac.uk dnsadmin.kcl.ac.uk
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
*.kcl.ac.uk |
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA OV R36 | Thu, 24 Dec 2026 23:59:59 +0000 |
Sectigo Public Server Authentication CA OV 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 (0)
None observed.
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
29528331-275b-4a90-9b43-3ce232d3f646- Output Hash
f9b638fedad58d7bd033e9ee1d5ee255729eedca9893460b206baf79b3c50f40- Signature
ed25519:1761512fa2ecf7c007d6952c59f549bb4dbba7cd491f78af6c81c7c2fb2c4b6c20217cdcc79e566b63a08eb38f24768e7ee5d6b3ea58dfce9c25f120a975370c- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast