CONTINUOUS INTERNET TELEMETRY24H DRIFT990 material changesacross 520 domains · last 24h · -9,425 vs yesterdayDNS DRIFT12 domains changed DNS providertop destination cloudflare.com · -647 vs yesterdayEMAIL DRIFT4 domains switched email providertop destination google.com · -163 vs yesterdayCERT DRIFT2 domains switched issuing CA24h · -217 vs yesterdayNOW421 curated domains not reachable-282 vs yesterdaySITE ERRORS17,593 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 100,843 sites429 rate-limit / 403 bot-block, a posture signal

altap.cz

Observed Jul 24, 2026, 08:54 UTC (14h 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
4 subdomains · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat altap.cz actually stands on - every host below is a signed observation
altap.cz
A / AAAA
217.31.53.26
unattributedserves the site
NS
ns.altap.czns2.ignum.cz
altap.cz + ignum.czanswers its DNS
MX
mail.altap.cz
altap.czreceives its email
TLS
altap.cz
Let's Encryptissued its certificate

DNS Records

A 1

  • 217.31.53.26

MX 1

  • 10mail.altap.cz

TXT 2

  • v=spf1 mx -all
  • v=DMARC1; p=quarantine; sp=quarantine; aspf=s; pct=100; ruf=mailto:postmaster@altap.cz

NS 2

  • ns.altap.cz
  • ns2.ignum.cz

SOA 1

  • ns.altap.cz root.altap.cz

CAA 1

  • issue "letsencrypt.org"

TLS Certificates (3)

Common NameIssuerExpires
altap.cz C=US, O=Let's Encrypt, CN=YR2 Wed, 16 Sep 2026 03:00:32 +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 (4)

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

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

Ed25519 Receipt

Receipt ID
rcpt_f5dc1c80edb0bfcc
Output Hash
d345c84ddaf26b41414f07b8cde8a96c396d9e329fa98154693af17fc7cf00bb
Signature
ed25519:8358f17a3f1fb4805f3f6feba1ce35523411db3648b9673e86580dd7b7f27c23a09df51312a81732e4ea596d7f5d42df067b79b7e0b8d23687c1841351ac0309
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser