amrc.co.uk
Observed Jul 23, 2026, 07:54 UTC (2d 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
Email byGoogle Workspace
Secured byLet's Encrypt
Also usesAtlassianSlackGoogle Search Console
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat amrc.co.uk actually stands on - every host below is a signed observation
amrc.co.uk
A / AAAA
143.167.1.22
unattributedserves the site
NS
cpanel-ns-live1.shef.ac.ukcpanel-ns-live2.shef.ac.uk
shef.ac.ukanswers its DNS
MX
alt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.comaspmx.l.google.com+1 more
Google Workspacereceives its email
TLS
amrc.co.uk
Let's Encryptissued its certificate
DNS Records
A 1
143.167.1.22
MX 5
20alt1.aspmx.l.google.com20alt2.aspmx.l.google.com30aspmx2.googlemail.com10aspmx.l.google.com30aspmx3.googlemail.com
TXT 16
gitkraken-domain-verification=623c7a75c144410b34c65e4db83cf364eb6a968a82103225ebd675837c0ae425apple-domain-verification=QEFWXQrX8RIamqUCatlassian-domain-verification=WC0vy0va9lVYYb/bMFoJUt9BHMFooknIZj3OcTilD1L4PNx0/7n3OCX5klPgI/8289462471-5fe1-4c09-8acf-1a80d0ca41ed_100718slack-domain-verification=brG9fe4CzmQSjobRifbogik4sRlth3j7LAIvIDMJMS=11A7FB4CD575ABC2CB4558BDFF88796AEBD83722atlassian-domain-verification=IvjsjbL5VbZnxtKerYayUzAQvdPjgaBXZXhB/CXggUedGtd1VDW7DiQDt5iWyYfvv=spf1 ip4:143.167.0.0/16 ip4:146.177.26.108 include:_spf.google.com include:spf.protection.outlook.com include:et._spf.pardot.com include:_spf.elasticemail.com include:spf.amris.com -allgoogle-site-verification=DNs1_WEDmtvdI67Tq7OC4-wvWfyHB_uImoeytqoth6gapple-domain-verification=7b7v3q1XXXFNV8eY
NS 2
cpanel-ns-live1.shef.ac.ukcpanel-ns-live2.shef.ac.uk
SOA 1
cpanel-ns-live1.shef.ac.uk cpanel.sheffield.ac.uk
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
amrc.co.uk |
C=US, O=Let's Encrypt, CN=YR2 | Tue, 20 Oct 2026 19:23:59 +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_1585832a1f75582e- Output Hash
fbc66310bdd31e4991d30e617b6ce7d6fbc261c187b36396574af224a1d365ea- Signature
ed25519:28944b30188267377317b6e23fc54570bdc217bc7924c37ef0c41aa1376ad0f02cd2e295bd1a1c23c3b01de8a3db79bade54427d7eac9c55b275567464be5000- Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8- Parent
(genesis)- Plane
- fast