hdk.cz

Observed Aug 16, 2026, 06:32 UTC (21d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of hdk.cz was taken 21d ago

hdk.cz is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting hdk.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 hdk.cz Watching a domain needs a DRM3 account. The reading above stays free and public either way.
Up right now
Runs onWebSupport s.r.o
Email byMicrosoft 365
Secured byLet's Encrypt
Registered withREG-WEDOS
Also usesFacebook/MetaGoogle Search Console
DNSSEC on · IPv6 · 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 hdk.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 12

A1AAAA1NS4MX1TXT4SOA1

TLS certificates 3

Issued byLet's Encrypt
ExpiresWed, 14 Oc (38d)
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_17168c1e2e13814f
Output Hash
8aa0ff7d15ace68a3b8f204db36b80c00608ca8fce86de1cccb5e236fa747ffb
Signature
ed25519:58b952c9786f0edff712d7f5ea2e6081b9a054215c991ccaef0a5780b55bef265394975ac48a168440651f9e02e91f8107983f01cdf140b7bd3583258f488f04
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
CONTINUOUS INTERNET TELEMETRY24H DRIFT5,687 material changesacross 3,834 domains · 24h to ~3h ago · +978 vs yesterdayROTATION55 domains moved DNS from koaladns.com to magpiedns.com, 53 moved backa rotation loop, not a migration · 24hEMAIL DRIFT3 domains switched email providertop destination realitymod.orgREGISTRAR DRIFT1 changed registrar24hNOW593 curated domains not reachablelast probe, steadySITE ERRORS17,464 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 79,525 sites429 rate-limit / 403 bot-block, a posture signal