checkbook.io

Observed Aug 20, 2026, 13:57 UTC (8h ago). Every field below was attested with an Ed25519 signature at scan time. Catalog observation, re-checked on rotation - watch it for 5-minute checks.

Verify this receipt yourself + Watch this domain

Up right now

Runs onCloudflare

Email byGoogle Workspace

Also usesFacebook/MetaSlackCitrixAppleSophosGoogle Search Console

11 subdomains · tranco

Every line above is a signed observation. Check the math at the bottom of the page.

DRIFT

Steady. No change on record for checkbook.io 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.

HTTPS probe

Up Responding normally (2xx) 200 OK

HTTP status200

Servercloudflare

TLS protocolHTTP/2

TLS issuernot observed

Behind Cloudflareyes

Response time153 ms

DNS resolutionNOERROR

Every field above is part of the same signed observation as the records below. Blank means not observed, never "none".

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 26

A4NS4MX5TXT12SOA1

TLS certificates 0

None.

Subdomains 11

11 subdomain hostnames 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_7898ab335390ea19
Output Hash: 3daf7256dde8d3e08a5c808ab5e764cd15dfe4962aa7637229712f01750d099f
Signature: ed25519:3b1d11a082ebf5cd147c8bcf636320a15142befa64092f9a6a270c94fc121e47332704685e46cb2ac93905b072e06657a3f844ea34b1a7ff7ab1e48d81df9900
Public Key: ed25519:7aad40f2d6399c207fe2fc15aade04a78324787a355d36725cc90687f9e10cff
Parent: (genesis)
Plane: fast

Permalink: https://domaindrift.io/t/checkbook.io