marcin.uk
Observed Aug 16, 2026, 09:24 UTC (4h 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
Secured byLet's Encrypt
Let's Encrypt6 subdomains · domcop
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat marcin.uk actually stands on - every host below is a signed observation
marcin.uk
A / AAAA
23.88.54.170
unattributedserves the site
NS
dns1.registrar-servers.comdns2.registrar-servers.com
registrar-servers.comanswers its DNS
MX
eforward1.registrar-servers.comeforward2.registrar-servers.comeforward3.registrar-servers.comeforward4.registrar-servers.com+1 more
registrar-servers.comreceives its email
TLS
marcin.uk
Let's Encryptissued its certificate
DNS Records
A 1
23.88.54.170
MX 5
10eforward1.registrar-servers.com10eforward2.registrar-servers.com10eforward3.registrar-servers.com15eforward4.registrar-servers.com20eforward5.registrar-servers.com
TXT 1
v=spf1 include:spf.efwd.registrar-servers.com ~all
NS 2
dns1.registrar-servers.comdns2.registrar-servers.com
SOA 1
dns1.registrar-servers.com hostmaster.registrar-servers.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
marcin.uk |
C=US, O=Let's Encrypt, CN=YR2 | Mon, 02 Nov 2026 01:51:05 +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 (6)
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_414d1780aa812452- Output Hash
a68bbc59c1d9b584280bf4b042cb3abfa3a227824f052d3630fb90f1f08bc31c- Signature
ed25519:66695caa1fb740eb956c5054482783ee04a23aa3680a6ec20a67268dabb7067879da3d8da4eb5de9b961096069f9fc7f3ebfa8ff555802e0341cd71b436c4d01- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast