or.cz

Observed Jul 18, 2026, 13:59 UTC (1d ago). Every field below was attested with an Ed25519 signature at scan time.

Guarded by a firewall

Runs onZONER a.s

Secured byLet's Encrypt

IPv6 · 17 subdomains · tranco_40k

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

INFRASTRUCTURE MAPwhat or.cz actually stands on - every host below is a signed observation

or.cz

A / AAAA

217.198.121.292a00:19a0:3:79:0:d9c6:791d:1

ZONER a.sserves the site

sinux.sinus.czns.or.cz

sinus.cz + or.czanswers its DNS

engine.or.cz

or.czreceives its email

TLS

eparchie.cz

Let's Encryptissued its certificate

DNS Records

A 1

217.198.121.29

AAAA 1

2a00:19a0:3:79:0:d9c6:791d:1

MX 1

5engine.or.cz

TXT 1

v=spf1 ip4:109.183.81.40 ip4:85.160.68.50 ip4:88.146.116.164 ip4:46.234.123.81 ~all

NS 2

sinux.sinus.cz
ns.or.cz

SOA 1

pasky.or.cz pasky.ucw.cz

TLS Certificates (2)

Common Name	Issuer	Expires
`eparchie.cz`	C=US, O=Let's Encrypt, CN=R13	Mon, 17 Aug 2026 18:12:44 +0000
`R13`	C=US, O=Internet Security Research Group, CN=ISRG Root X1	Fri, 12 Mar 2027 23:59:59 +0000

Subdomains (17)

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 or.cz. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID: 459c1b72-8aa1-45da-b122-abb0cc639090
Output Hash: eee1ef7d7362fbeae95a3ca8ed39beefd3ce5bdc9537b3eccf57894cd89421e5
Signature: ed25519:b5b4328db9e4adc038d6f77039e5e1476798d51c3fe7657dc4e7f6746751ea82d932c8dc4bf5e804e216cd11bd21dd2ebe99d42fcf96e9bae6189cb6f852fc0b
Public Key: ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent: (genesis)
Plane: fast

Verify this in your browser

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