fastcom.cz

Last scanned 15h ago; the signed record is unchanged since 19d 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 onFast Communication
Secured byLet's Encrypt
Registered withREG-GRANSY
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 fastcom.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 9

A1NS4MX1TXT1SRV1SOA1

TLS certificates 3

Issued byLet's Encrypt
ExpiresSat, 10 Oc (41d)
Certificate nameswithheld

Subdomains 1

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

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_9b80991abbcc03fd
Output Hash
8dd6880bed0e9c6ed78f12ae5ec251f058c94825a8893065de37d4fe9658d392
Signature
ed25519:fbf4a878ae7b2fffc8c3c4e6a8239a0a5d349da6391cd5f85a1ae1723faa60561d86041f384f269fd60d87654c759e7c705efa74e72b03a9e29ea7c993e6870f
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
CONTINUOUS INTERNET TELEMETRY24H DRIFT28,454 material changesacross 23,129 domains · 24h to ~2h agoROTATION52 domains moved DNS from koaladns.com to magpiedns.com, 52 moved backa rotation loop, not a migration · 24hREGISTRAR DRIFT4 changed registrar24hNOW559 curated domains not reachablelast probe, steadySITE ERRORS18,214 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 80,859 sites429 rate-limit / 403 bot-block, a posture signal