sdn.cz

Observed 2026-07-12T23:50:05.375Z (7h ago). Every field below was attested with an Ed25519 signature at scan time.

Up right now

Runs onCloudflare

Also usesGoogle Search Console

IPv6 · 1 subdomain · tranco_10k

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

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

sdn.cz

A / AAAA

77.75.77.19577.75.79.1952a02:598:2::11952a02:598:a::79:195

Cloudflareserves the site

ans.seznam.czams.seznam.cz

seznam.czanswers its DNS

HTTPS probe

ok Responding normally (2xx) 200 OK

HTTP status200

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time1145 ms

DNS resolutionNOERROR

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

DNS Records

A 2

77.75.77.195
77.75.79.195

AAAA 2

2a02:598:2::1195
2a02:598:a::79:195

TXT 3

google-site-verification=H9hnIkJHfWF07LHKFKBwlbsrBVrtLoa0YmF4KnCaGL8
google-site-verification=xRa-9L9fTtJYHITIHBwoOu6PzbUIBpsKqOMh3fLpvZU
v=DNSSEC1; (detected)

NS 2

ans.seznam.cz
ams.seznam.cz

SOA 1

ans.seznam.cz hostmaster.seznam.cz

CAA 2

iodef mailto:abuse-caa@firma.seznam.cz
issue letsencrypt.org

TLS Certificates (0)

None.

Subdomains (1)

api.sdn.cz

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

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

Ed25519 Receipt

Receipt ID: bba334ea-cb7b-46dd-bf0f-71960d64a9a7
Output Hash: 5e6ed791570c7513858c2c2f48d7e72d6c4cbb59e211ae2006dae0b99d086895
Signature: ed25519:221f7a52d6fff38a154a0f0adba8117418bcd06fb1a2c50e5658617f7bff0ad5698cd87e1b3d3a551f4a2225da06d674418b1f9c3256c29715613b592ba9e307
Public Key: ed25519:d610d74ef18f683e5beb859d241d5e67dff0c122e8928b06bec1c2476f4ba27b
Parent: (genesis)
Plane: fast

Verify this in your browser

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