CONTINUOUS INTERNET TELEMETRY24H DRIFT71,617 material changesacross 67,026 domains · last 24h · +37,000 vs yesterdayROTATION57 domains moved DNS from koaladns.com to magpiedns.com, 56 moved backa rotation loop, not a migration · 24hNOW537 curated domains not reachablelast probe, steadySITE ERRORS33,860 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 127,610 sites429 rate-limit / 403 bot-block, a posture signal

vfn.cz

Observed Aug 3, 2026, 09:22 UTC (2d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of vfn.cz was taken 2d ago

vfn.cz is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting vfn.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 vfn.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 byMicrosoft 365
Secured byHellenic Academic and Research Institutions CA
Also usesGoogle Search Console
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
INFRASTRUCTURE MAPwhat vfn.cz actually stands on - every host below is a signed observation
vfn.cz
A / AAAA
13.74.147.218
unattributedserves the site
NS
ns1-09.azure-dns.comns2-09.azure-dns.netns3-09.azure-dns.orgns4-09.azure-dns.info
azure-dns.com + azure-dns.net + moreanswers its DNS
MX
vfn-cz.h-v1.mx.microsoft
Microsoft 365receives its email
TLS
vfn.cz
Hellenic Academic and Research Institutions CAissued its certificate

DNS Records

A 1

  • 13.74.147.218

MX 1

  • 10vfn-cz.h-v1.mx.microsoft

TXT 6

  • vfn-webprod.azurewebsites.net
  • google-site-verification=RdApKO2beYmn5ssq-uDdNaZWhPNUCgKgA-HvKpeVuqc
  • MS=ms59752476
  • V4vQhJITjr/jlM6VCHenwDwjuPEH+UDY/zPXlkGLcXRkL8ZV0yGdgUoJ4laGjokuHo9nfXJPach6nVqeunMB4A==
  • v=spf1 a:ex-cas.vfn.cz a:ex-cas01.vfn.cz a:svr-excas01.vfn.cz a:dec52.lf1.cuni.cz include:2n17yirxf.spf.checkpoint-spf.com include:spf.protection.outlook.com -all
  • apple-domain-verification=UZRcEeeUGyMSZ171

NS 4

  • ns1-09.azure-dns.com
  • ns2-09.azure-dns.net
  • ns3-09.azure-dns.org
  • ns4-09.azure-dns.info

SOA 1

  • ns1-09.azure-dns.com azuredns-hostmaster.microsoft.com

CAA 2

  • issue "harica.gr"
  • issue "digicert.com"

DMARC_RECORDS 1

  • v=DMARC1; p=quarantine; pct=95

TLS Certificates (2)

Common NameIssuerExpires
vfn.cz C=GR, O=Hellenic Academic and Research Institutions CA, CN=GEANT TLS RSA 1 Tue, 29 Sep 2026 11:29:57 +0000
GEANT TLS RSA 1 C=GR, O=Hellenic Academic and Research Institutions CA, CN=HARICA TLS RSA Root CA 2021 Sat, 31 Dec 2039 11:14:59 +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; the only network request the check makes is for the published public keys.

Verify this receipt

Ed25519 Receipt

Receipt ID
rcpt_8ff382bdab7c024e
Output Hash
98eab385bfa0a70b596e078c3b17c6b7557b9a611f6d78f8a9cc98301387df96
Signature
ed25519:2401b552c42c8e1a17a32eb6a11528e16e9980740376f21c906542a6469317d5400ca189b3e5d03410b54aa1fb95b0773a36dc348b3017ddb30f44dbfeaa580d
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
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