utf.cz
Observed Jul 26, 2026, 08:57 UTC (7d 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
IPv6 · 1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat utf.cz actually stands on - every host below is a signed observation
utf.cz
A / AAAA
46.28.106.2002a02:2b88:1:4::fc
2a02serves the site
NS
ns.wedos.czns.wedos.euns.wedos.comns.wedos.net
wedos.cz + wedos.eu + moreanswers its DNS
MX
wes1-mx1.wedos.netwes1-mx2.wedos.netwes1-mx-backup.wedos.net
wedos.netreceives its email
TLS
utf.cz
Let's Encryptissued its certificate
DNS Records
A 1
46.28.106.200
AAAA 1
2a02:2b88:1:4::fc
MX 3
1wes1-mx1.wedos.net1wes1-mx2.wedos.net10wes1-mx-backup.wedos.net
NS 4
ns.wedos.czns.wedos.euns.wedos.comns.wedos.net
SOA 1
ns.wedos.net wedos.wedos.com
TLS Certificates (3)
| Common Name | Issuer | Expires |
|---|---|---|
utf.cz |
C=US, O=Let's Encrypt, CN=YR2 | Thu, 15 Oct 2026 00:45:49 +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_5ead1f0287c59d74- Output Hash
0dd6dc569bc7b5fc43f8b2c78fc5bed5699fb1575e6ed5ce56e130b69c3b7fa4- Signature
ed25519:6852fea1a4b2eb0f76b2c0f9f0b54a9696f737d8d77bfb2c81a17c6fed442327016853d2ae4a8a1d75cc7cc9964dde272e765e564b4a34daee73751409837f0a- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast