henrycourse.com

Observed Aug 16, 2026, 13:15 UTC (20d ago). Every field below was attested with an Ed25519 signature at scan time.

This reading of henrycourse.com was taken 20d ago

henrycourse.com is on the survey sweep, which works its way across the whole catalog rather than returning to one name on a schedule. Putting henrycourse.com 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 henrycourse.com Watching a domain needs a DRM3 account. The reading above stays free and public either way.
DRIFT

Steady. No change on record for henrycourse.com 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 10

A4NS4TXT1SOA1

TLS certificates 5

Issued byLet's Encrypt
ExpiresWed, 07 Oc (32d)
Certificate nameswithheld

Subdomains 0

None observed.

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_cbca47ad82d3348e
Output Hash
d613e4c39fdaf8f074664155369b3090491de5b21b1b2bee2e67a642e69d1821
Signature
ed25519:5d28170e007f4711b65e01f8d63fe10ee2a83b2508dc0613e59a2860ae227b861b56edd9e1c7e8c468973f7451ed36538338331fd6be4280dd9a3753b546b90b
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
CONTINUOUS INTERNET TELEMETRY24H DRIFT4,766 material changesacross 2,733 domains · 24h to ~2h ago · +57 vs yesterdayROTATION55 domains moved DNS from magpiedns.com to koaladns.com, 50 moved backa rotation loop, not a migration · 24hNOW590 curated domains not reachablelast probe, steadySITE ERRORS17,436 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 79,475 sites429 rate-limit / 403 bot-block, a posture signal