CONTINUOUS INTERNET TELEMETRY24H DRIFT776 material changesacross 287 domains · last 24h · -31 vs yesterdayDNS DRIFT4 domains changed DNS providertop destination hichina.comCERT DRIFT1 domains switched issuing CA24hNOW511 curated domains not reachable+89 vs yesterdaySITE ERRORS17,678 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 100,925 sites429 rate-limit / 403 bot-block, a posture signal

ardon.cz

Observed Jul 23, 2026, 12:36 UTC (2d 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
Email byMicrosoft 365
Secured byLet's Encrypt
Also usesFacebook/Meta
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat ardon.cz actually stands on - every host below is a signed observation
ardon.cz
A / AAAA
81.95.110.22
unattributedserves the site
NS
ns.forpsi.czns.forpsi.itns.forpsi.net
forpsi.cz + forpsi.it + moreanswers its DNS
MX
ardon-cz.mail.protection.outlook.com
Microsoft 365receives its email
TLS
www.ardon.cz
Let's Encryptissued its certificate

DNS Records

A 1

  • 81.95.110.22

MX 1

  • 0ardon-cz.mail.protection.outlook.com

TXT 2

  • facebook-domain-verification=g8qckiif21uo8lqyiacqcxem876tiw
  • v=spf1 include:spf.protection.outlook.com include:_emailing.heureka.cz include:spf.netdirect.cz -all

NS 3

  • ns.forpsi.cz
  • ns.forpsi.it
  • ns.forpsi.net

SOA 1

  • ns.forpsi.net admin.forpsi.com

TLS Certificates (4)

Common NameIssuerExpires
www.ardon.cz C=US, O=Let's Encrypt, CN=YE2 Mon, 28 Sep 2026 22:47:38 +0000
YE2 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 (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 ardon.cz. It updates itself. It attests a signed observation - not that the site is safe.

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

Ed25519 Receipt

Receipt ID
rcpt_182e5c89291ee9d9
Output Hash
388a32d55b9ef2047024eecccc7d0737e152c23a91a1e17dc3373b63e9d3ac79
Signature
ed25519:521cf93b028c3c6787471a9a9a7eaa68f9556c25fb0ecb68729def6bd687d52be1f8e962d9ce7d60bfde75841b2d77560d5b535b212dd3d1b36c617dea7ef10b
Public Key
ed25519:178c3bd0f57d9d64b83cc4630753381e1a465005a2bbba3d032371f24af0bfd8
Parent
(genesis)
Plane
fast
Verify this in your browser