rcuk.com
Observed Aug 16, 2026, 06:48 UTC (8h 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 byMicrosoft 365
Microsoft 365Secured byLet's Encrypt
Let's EncryptAlso usesGoogle Search Console
Google Search Console1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat rcuk.com actually stands on - every host below is a signed observation
rcuk.com
A / AAAA
82.29.191.166
unattributedserves the site
NS
dns1.registrar-servers.comdns2.registrar-servers.com
registrar-servers.comanswers its DNS
MX
rcuk-com.mail.protection.outlook.com
Microsoft 365receives its email
TLS
rcuk.com
Let's Encryptissued its certificate
DNS Records
A 1
82.29.191.166
MX 1
0rcuk-com.mail.protection.outlook.com
TXT 4
54582mvao7h3cjrf25010cr8hhm6r6cptmtr63poeh7p127pkelrv=spf1 redirect=_sg18ba9ks.sdmarc.netgoogle-site-verification=AcZDmcWjjMZC5XmWG6kWukQzOvH3zhKRBqAlQlFoyeE
NS 2
dns1.registrar-servers.comdns2.registrar-servers.com
SOA 1
dns1.registrar-servers.com hostmaster.registrar-servers.com
DMARC_RECORDS 1
v=DMARC1; p=quarantine; pct=100; rua=mailto:a.g18ba9ks@sdmarc.net
TLS Certificates (4)
| Common Name | Issuer | Expires |
|---|---|---|
rcuk.com |
C=US, O=Let's Encrypt, CN=YE2 | Fri, 18 Sep 2026 13:53:05 +0000 |
YE2 |
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 (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; the only network request the check makes is for the published public keys.
Verify this receiptEd25519 Receipt
- Receipt ID
rcpt_3a597b9086168ba0- Output Hash
33fb624d3d023650d82c7473d9084c4d89c53d94707684184ea5dc46b5f334cb- Signature
ed25519:0bc49a5495f90bf05913d29e8c913b89d2ea140f205a3d21b65ae7f3c96ee4e6c2ab33924a5c79cfb64d09397d31bfb17f50efac3c074e25e42b063678de190c- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast