open.ac.uk

Observed 2026-07-18T07:08:02.372Z (5h ago). Every field below was attested with an Ed25519 signature at scan time.

Not responding

Runs onCloudflare

Email byMicrosoft 365

Also usesDocuSignFacebook/MetaFigmaGoogle Search ConsoleMiro

9 subdomains · tranco_10k

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

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

open.ac.uk

A / AAAA

137.108.200.89

Cloudflareserves the site

ns5.dnsmadeeasy.comnse-2.open.ac.uknse-1.open.ac.ukns7.dnsmadeeasy.com+5 more

dnsmadeeasy.com + open.ac.uk + moreanswers its DNS

open-ac-uk.mail.protection.outlook.comopen-ac-uk.mail.protection.outlook.com

Microsoft 365receives its email

HTTPS probe

server_error Server error (5xx) 521 Server Error

HTTP status521

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time166 ms

DNS resolutionNOERROR

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 1

137.108.200.89

MX 2

10open-ac-uk.mail.protection.outlook.com
20open-ac-uk.mail.protection.outlook.com

TXT 20

docusign=6ff4a17b-e6f2-45fd-adee-5e7d8e78af60
v=spf1 include:spf.protection.outlook.com ip4:137.108.232.47 ip4:137.108.232.48 ip4:137.108.170.8 ip4:137.108.170.38 ip4:137.108.170.40 ip4:137.108.185.44 ip4:137.108.185.41 -all
QuoVadis=68982e3b-7953-4614-873f-9da98085027c
facebook-domain-verification=l6vomvk8x70tqy0bsom3lld4pxj20j
figma-domain-verification=8e8c055668fae80b926c0288eb5982239084b5615285898089176860f918f8e4-1732096691
google-site-verification=google62758846b6a19202.html
miro-verification=218d5a800c3e23121a9ebb0e337ded3afd09be2a
google-gws-recovery-domain-verification=64421263
ms-domain-verification=7909bfce-d665-48fa-a544-e7478ff30053
google-gws-recovery-domain-verification=72528825

NS 9

ns5.dnsmadeeasy.com
nse-2.open.ac.uk
nse-1.open.ac.uk
ns7.dnsmadeeasy.com
dns1.easydns.com
dns3.easydns.org
ns6.dnsmadeeasy.com
nse-0.open.ac.uk
dns2.easydns.net

SOA 1

nse-0.open.ac.uk hostmaster.open.ac.uk

TLS Certificates (0)

None.

Subdomains (9)

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 open.ac.uk. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 3c37b60f-b9a7-45d3-800e-73a62beee154
Output Hash: 4deef3b05442ec5623a0fa05cf6f9c75eb3d392fe7d332ccf2da579b7d2518ce
Signature: ed25519:3283336d5827d2560bef62b824d08384729c4963fa0abe2ec4befa3427bfb3147fbc7f85524ecfd831fc69cf043757efbed47be6bbe249fdcaa44124045c7d0b
Public Key: ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff
Parent: (genesis)
Plane: fast

Verify this in your browser

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