hzdr.de

Last scanned 5h ago; the signed record is unchanged since 16d 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 onVerein zur Foerderung eines Deutschen Forschungsnetzes e.V
Secured byHellenic Academic and Research Institutions CA
1 subdomain · tranco_100k
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT

Steady. No change on record for hzdr.de 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 12

A1NS3MX3TXT1SRV3SOA1

TLS certificates 3

Issued byHellenic Academic and Research Institutions CA, Hellenic Academic and Research Institutions Cert. Authority
ExpiresWed, 09 Se (12d)
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_548aee36ddb76225
Output Hash
f70f86994134f300c5c1a6b4e2ed90df8cda450c3c37e3f7193ecf0b3fc45da0
Signature
ed25519:21b3a1aefcc37ce91b77906f6eecc0085e90696f51d5cacad1d21dcf9b83378b1ad0acf281079ce4e5e4f6c7e7479fe9f0fad13785a71c54dbfb753b68355a0d
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
CONTINUOUS INTERNET TELEMETRY24H DRIFT4,137 material changesacross 2,620 domains · 24h to ~80m ago · +119 vs yesterdayROTATION57 domains moved DNS from kirklanddc.com to koaladns.com, 55 moved backa rotation loop, not a migration · 24hNOW578 curated domains not reachablelast probe, steadySITE ERRORS17,797 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 78,603 sites429 rate-limit / 403 bot-block, a posture signal