ferona.cz

Last scanned 17h ago; the signed record is unchanged since 14d ago. Every field below carries an Ed25519 signature from that last reading. Catalog observation, re-checked on rotation - watch it for 5-minute checks.

Up right now
Runs onmapnet IT services s.r.o
Secured byLet's Encrypt
Also usesMicrosoft 365
1 subdomain · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT

Steady. No change on record for ferona.cz in the last day; this reading matches the one before it. The steady record is signed like every other reading. Watch it to catch the next move the moment it lands.

SIGNED-OUT VIEW Provider names, posture and counts are shown. The record values - every DNS answer, each subdomain hostname, raw TXT, IPs, cert names and WHOIS - are the product. Sign in for the full signed record, or use the API with a key.

DNS records 8

A1NS2MX1TXT2CAA1SOA1

TLS certificates 3

Issued byLet's Encrypt
ExpiresWed, 23 Se (23d)
Certificate nameswithheld

Subdomains 1

1 subdomain hostname observed and signed - the list itself is part of the paid record.

WILDCARD DNSobserved 2026-08-30 06:54 UTC

DomainDrift asked this domain for one hostname that nobody ever registered, and it answered. A domain that answers invented hostnames is running wildcard DNS. It is common and usually deliberate. A SaaS platform gives every customer a subdomain this way. How the check works

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 receiptthe raw cryptographic proof
Receipt ID
rcpt_9d38c5c7d36c6a30
Output Hash
1ebdf78e1689c2cfa4343dfeca95340763629ec1455418d1f73d4aef3a8c0bec
Signature
ed25519:e4927d0b19ec8e524146b4ed955910a437c605741e89d6489f50c133bb9f13f01078afde70fceac9a4f57b8ed5cac9e680695f9ea942c6e389c23c65d6349402
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
CONTINUOUS INTERNET TELEMETRY24H DRIFT28,253 material changesacross 22,877 domains · 24h to ~2h agoROTATION62 domains moved DNS from magpiedns.com to koaladns.com, 58 moved backa rotation loop, not a migration · 24hREGISTRAR DRIFT3 changed registrar24hNOW561 curated domains not reachablelast probe, steadySITE ERRORS18,219 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 80,863 sites429 rate-limit / 403 bot-block, a posture signal