cf.ac.uk

Observed Jul 18, 2026, 13:31 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Guarded by a firewall

Runs onCloudflare

Email byMicrosoft 365

Secured byLet's Encrypt

Also usesGoogle Search ConsoleZoom

tranco_40k

Every line above is a signed observation. Check the math at the bottom of the page.

INFRASTRUCTURE MAPwhat cf.ac.uk actually stands on - every host below is a signed observation

cf.ac.uk

A / AAAA

43.245.41.93

Cloudflareserves the site

ns3.ja.netmnetidns01.cf.ac.ukmnetidns02.cf.ac.uk

ja.net + cf.ac.ukanswers its DNS

cf-ac-uk.mail.protection.outlook.com

Microsoft 365receives its email

TLS

cf.ac.uk

Let's Encryptissued its certificate

DNS Records

A 1

43.245.41.93

MX 1

10cf-ac-uk.mail.protection.outlook.com

TXT 12

MS=ms60395318
mentimeter-8d826a9f-35de-4930-a644-9856fcd72553
google-site-verification=LdJePZTvkh_n5gePg7UE8Gis5jPJl0BuLA2t88EnxDM
google-gws-recovery-domain-verification=70005529
apple-domain-verification=e2tZ15BPiDbMy6w2
8A8FC754-9517-4903-89F0-485BD355265C
ZOOM_verify_4DwfP9IMSouWxNoqvBZ6dg
v=spf1 include:spf.protection.outlook.com exists:%{ir}.%{v}.arpa.spf.cardiff.ac.uk -all
scnv-verification=6f3b1b9a82b9b5523451253f5f83a571:ceea21c0764997f59294b16075e30844:c105b2bb57714b5bb7fab7a7f89e5767
QuoVadis=c9b0353e-e6e2-46c8-984d-a09e98dbe402

NS 3

ns3.ja.net
mnetidns01.cf.ac.uk
mnetidns02.cf.ac.uk

SOA 1

mnetidns01.cf.ac.uk hostmaster.cardiff.ac.uk

TLS Certificates (4)

Common Name	Issuer	Expires
`cf.ac.uk`	C=US, O=Let's Encrypt, CN=YE1	Wed, 02 Sep 2026 13:16:14 +0000
`YE1`	C=US, O=ISRG, CN=Root YE	Sat, 02 Sep 2028 23:59:59 +0000
`Root YE`	C=US, O=Internet Security Research Group, CN=ISRG Root X2	Thu, 02 Sep 2032 23:59:59 +0000
`ISRG Root X2`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Thu, 02 Sep 2032 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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for cf.ac.uk. It updates itself. It attests a signed observation - not that the site is safe.

<a href="https://domaindrift.io/t/cf.ac.uk">
  <img src="https://domaindrift.io/badge/cf.ac.uk.svg"
       width="300" height="64" alt="DomainDrift signed observations for cf.ac.uk">
</a>

Ed25519 Receipt

Receipt ID: 8fa80e43-1201-4794-a553-89afe2d58ddb
Output Hash: f69b58e2ff2de1f1e1ee545c78d4c86488fccde5283ba53185d06746779e4890
Signature: ed25519:8d87dff14a765926b361109053d49747090208c7fe45980b119c72895e57826961acf342d0dcd730eeddfdff675907b04f5e475eda66b21fcfcbf2d262f31a0e
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

Permalink: https://domaindrift.io/t/cf.ac.uk