CONTINUOUS INTERNET TELEMETRY24H DRIFT12,792 material changesacross 10,233 domains · last 24hNOW549 curated domains not reachable+47 vs yesterdaySITE ERRORS35,019 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 154,568 sites429 rate-limit / 403 bot-block, a posture signal

amper.cz

Observed Jul 29, 2026, 04:15 UTC (11h 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
1 subdomain · majestic
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat amper.cz actually stands on - every host below is a signed observation
amper.cz
A / AAAA
193.179.209.132
unattributedserves the site
NS
ns1.regzone.czns1.regzone.dens1.regzone.info
regzone.cz + regzone.de + moreanswers its DNS
MX
relay.zoner.com
zoner.comreceives its email
TLS
amper.cz
Let's Encryptissued its certificate

DNS Records

A 1

  • 193.179.209.132

MX 1

  • 1relay.zoner.com

TXT 2

  • v=spf1 a mx include:spf.smartemailing.cz ~all
  • v=DMARC1;p=reject;adkim=s;aspf=s;pct=100;

NS 3

  • ns1.regzone.cz
  • ns1.regzone.de
  • ns1.regzone.info

SOA 1

  • ns1.regzone.cz administrator.czechia.cz

TLS Certificates (3)

Common NameIssuerExpires
amper.cz C=US, O=Let's Encrypt, CN=YR1 Wed, 07 Oct 2026 22:15:26 +0000
YR1 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 receipt

Put the receipt on your own site. A live badge showing what DomainDrift observes and signs for amper.cz. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_f09064586a5cbfa9
Output Hash
961d95378d5f5d9772a3fcb0e007f96694a8455fd13938d7a49f6fdff9d5256d
Signature
ed25519:8892354ca601b3ada0e62edbff9f526ee2ed5b9bf38338aa6a8a510b7e9d9677d87b98d48389c14394de3e40fe17239b5f45aa7e218f2467ee76990ba03d4e05
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
Verify this in your browser