ark.ac.uk

Observed Jul 25, 2026, 23:06 UTC (6d 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.

Verify this receipt yourself + Watch this domain

Up right now

Email byMicrosoft 365

Secured byAmazon

majestic

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

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

ark.ac.uk

A / AAAA

15.197.70.1415.197.86.54

unattributedserves the site

chief.ulst.ac.ukcaptain.ulst.ac.uk

ulst.ac.ukanswers its DNS

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

Microsoft 365receives its email

TLS

ark.ac.uk

Amazonissued its certificate

DNS Records

A 2

15.197.70.14
15.197.86.54

MX 1

0ark-ac-uk.mail.protection.outlook.com

TXT 2

v=spf1 a:e4.ulster.edu include:spf.protection.outlook.com -all
v=DMARC1;p=reject;sp=reject;fo=d;rf=afrf;pct=100;ri=86400

NS 2

chief.ulst.ac.uk
captain.ulst.ac.uk

SOA 1

chief.ulster.ac.uk barney.ulster.ac.uk

CAA 2

issue "amazon.com"
issue "sectigo.com"

TLS Certificates (3)

Common Name	Issuer	Expires
`ark.ac.uk`	C=US, O=Amazon, CN=Amazon RSA 2048 M01	Thu, 08 Oct 2026 23:59:59 +0000
`Amazon RSA 2048 M01`	C=US, O=Amazon, CN=Amazon Root CA 1	Fri, 23 Aug 2030 22:21:28 +0000
`Amazon Root CA 1`	C=US, ST=Arizona, L=Scottsdale, O=Starfield Technologies, Inc., CN=Starfield Services Root Certificate Authority - G2	Thu, 31 Dec 2037 01:00:00 +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 ark.ac.uk. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: rcpt_48374592a66b2e30
Output Hash: 4089756a60f38017c25d52f3bd625435cbd608c182490cfe944add0e17f66305
Signature: ed25519:9a635c9221e3ff0ee0b89bf3ef4f1757da26e37abbc091495eda69aacb851056a5c1de9b3b022048a8bde59db1528ce1bf087b7b828f314d075c3361a0b1340e
Public Key: ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent: (genesis)
Plane: fast

Verify this in your browser

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