CONTINUOUS INTERNET TELEMETRY24H DRIFT34,617 material changesacross 32,325 domains · 24h to ~2h agoDNS DRIFT49 domains changed DNS providertop destination koaladns.com · +27 vs yesterdayNOW542 curated domains not reachablelast probe, steadySITE ERRORS33,687 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 157,287 sites429 rate-limit / 403 bot-block, a posture signal

zlin.cz

Observed Aug 3, 2026, 03:34 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of zlin.cz was taken 2d ago

zlin.cz is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting zlin.cz under watch moves it to the fast lane, where DomainDrift re-checks it about every 5 minutes and signs each reading, so a change becomes a dated event within minutes instead of waiting for the sweep to come round.

Watch zlin.cz Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Verify this receipt yourself + Watch this domain
Up right now
Email byGoogle (SPF sender)
Secured byLet's Encrypt
IPv6 · 2 subdomains · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat zlin.cz actually stands on - every host below is a signed observation
zlin.cz
A / AAAA
217.112.162.402a00:6500:0:11::eb:0
2a00serves the site
NS
tns.avonet.czsns.avonet.czns.avonet.cz
avonet.czanswers its DNS
MX
spool.avonet.czmx1.avonet.czms.avonet.cz
Google (SPF sender)receives its email
TLS
zlin.cz
Let's Encryptissued its certificate

DNS Records

A 1

  • 217.112.162.40

AAAA 1

  • 2a00:6500:0:11::eb:0

MX 3

  • 20spool.avonet.cz
  • 15mx1.avonet.cz
  • 10ms.avonet.cz

TXT 3

  • _xwp7rns7kt8fg3ltjim00am4xpci811
  • _k1w6fe6z8bwqz58qckf0hh1d7dpoam0
  • v=spf1 include:spf-bb0.avonet.cz include:_spf.google.com include:spf-zoner-cloudmail.zoner.com include:spf.smartemailing.cz -all

NS 3

  • tns.avonet.cz
  • sns.avonet.cz
  • ns.avonet.cz

SOA 1

  • ns.avonet.cz hostmaster.avonet.cz

DMARC_RECORDS 1

  • v=DMARC1; p=quarantine; rua=mailto:dmarc+161933@smartemailing.cz; fo=1

TLS Certificates (4)

Common NameIssuerExpires
zlin.cz C=US, O=Let's Encrypt, CN=YE1 Mon, 21 Sep 2026 13:49:25 +0000
YE1 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 (2)

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

Ed25519 Receipt

Receipt ID
rcpt_8e8ca08382ab94ad
Output Hash
9c8bd9fbe5aa2016029e76276ae760a4fc48f3f1fae207786e7ae5d81026a2e8
Signature
ed25519:59a971689fe5997e76a3b7fb6f63a31fdee369f62d2396bc349f0bdcd70fcaba45a6d4224c35480ed5d57a14c6e70d049d1791717fdb39cd0fdb255e025da807
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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