grammarhow.com

Last scanned 7h 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.

Guarded by a firewall
Runs onteam.blue Denmark A/S
Email byGoogle Workspace
Secured byLet's Encrypt
Registered withKey-Systems GmbH
Also usesGoogle Search Console
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 grammarhow.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 15

A1NS4MX5TXT3SRV1SOA1

TLS certificates 3

Issued byLet's Encrypt
ExpiresSun, 27 Se (27d)
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_888df47f6ce5589d
Output Hash
125b1f18864f3f8bdb33b9c55ef223fb1b03c63c5efc5999fbe85c403ebf2d33
Signature
ed25519:3b10b13b7c2280857b2d91459c84c36af304ae6fb40eb67abd8a284b88322784c830c10d9d27f69dac82f379ee4052ba251594314e4b4fbf6b980ff83aa2620d
Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9
Parent
(genesis)
Plane
fast
CONTINUOUS INTERNET TELEMETRY24H DRIFT25,159 material changesacross 19,886 domains · 24h to ~80m agoROTATION56 domains moved DNS from koaladns.com to magpiedns.com, 53 moved backa rotation loop, not a migration · 24hCERT DRIFT1 domains switched issuing CA24hREGISTRAR DRIFT3 changed registrar24hNOW563 curated domains not reachablelast probe, steadySITE ERRORS18,202 sites serving errorslast probe · 5xx / 404 / TLSBOT DEFENSEbot defense observed on 80,870 sites429 rate-limit / 403 bot-block, a posture signal