cam.ac.uk
Observed Jul 27, 2026, 20:29 UTC (5d 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 onFastly
Email byMicrosoft 365
Secured byLet's Encrypt
Also usesMiroGoogle Search ConsoleAtlassian
IPv6 · 1 subdomain · institutions
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat cam.ac.uk actually stands on - every host below is a signed observation
cam.ac.uk
A / AAAA
23.185.0.22620:12a:8000::22620:12a:8001::2
Fastlyserves the site
NS
ns1.mythic-beasts.comns2.ic.ac.ukns3.mythic-beasts.comdns0.cl.cam.ac.uk+5 more
mythic-beasts.com + ic.ac.uk + moreanswers its DNS
MX
cam-ac-uk.mail.protection.outlook.com
Microsoft 365receives its email
TLS
cam.ac.uk
Let's Encryptissued its certificate
DNS Records
A 1
23.185.0.2
AAAA 2
2620:12a:8000::22620:12a:8001::2
MX 1
0cam-ac-uk.mail.protection.outlook.com
TXT 17
_l57xfo8xodfo7j6g0fb9zoljfwh18qt_um3kem45o33chvq68mb4qyt72y57oow9026cbf1-7b8b-4613-87ce-a46bda32c08fQuoVadis=a2edaff3-bdc6-44c5-8550-2167fe7338c4jamf-site-verification=9Xc0IY8F9-nFQz_ItUdvSgairtable-verification=a44072da1d55edc25c09b3eb72f8ceddmiro-verification=a1052e0584a21e3d2792bce42f69dc21def357fchave-i-been-pwned-verification=505eab056dca3ebf0a94cc28eeef0c31google-site-verification=DzWWuhcpZ1B2FT5ftPCIV8rK6hbuLEEaojFzIt_YhSMgoogle-site-verification=WBy6QZ92OsuLOOPs8Zrr4GxorRnSu9H_aiLmyCjX-nI
NS 9
ns1.mythic-beasts.comns2.ic.ac.ukns3.mythic-beasts.comdns0.cl.cam.ac.ukdns0.eng.cam.ac.ukauth0.dns.cam.ac.ukauth1.dns.cam.ac.ukauth2.dns.cam.ac.ukauth3.dns.cam.ac.uk
SOA 1
primary.dns.cam.ac.uk hostmaster.cam.ac.uk
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
cam.ac.uk |
C=US, O=Let's Encrypt, CN=YR2 | Sun, 25 Oct 2026 08:12:17 +0000 |
YR2 |
C=US, O=ISRG, CN=Root YR | Sat, 02 Sep 2028 23:59:59 +0000 |
Root YR |
C=US, O=Internet Security Research Group, CN=ISRG Root X1 | Thu, 02 Sep 2032 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_f968429a4abbcd19- Output Hash
861e097965d33449c0005b5917b3cc0575b0f6119591abb62ca0a0c44328fb91- Signature
ed25519:ac798ff09f172fbe3b049bd00e9c15d5673221ab0eac079082187ffe3a48d681bd8bf8715233d7eb0416b6c7219d0ddfea1791a92e71f7fb622fb8955623c508- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast