ctfd.io
Last scanned 10h ago; the signed record is unchanged since 15d 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 onCloudflare
CloudflareEmail byGoogle Workspace
Google WorkspaceSecured byGoogle Trust Services
Google Trust ServicesRegistered withCloudflare, Inc
Also usesGoogle Search ConsoleGlobalSign
Google Search Console
GlobalSignDNSSEC on · IPv6 · tranco
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT
Steady. No change on record for ctfd.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.
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 16
A2AAAA2NS2MX5TXT4SOA1
TLS certificates 3
Issued byGoogle Trust Services, GlobalSign
ExpiresTue, 15 Se (19d)
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 receiptEd25519 receiptthe raw cryptographic proof
- Receipt ID
rcpt_f7fa3914ea546612- Output Hash
59025b31fa8b67dfcd8935aa793286c078a20c637827103fd5797ef6ac1510da- Signature
ed25519:c3f9a8f12b466ff6be04792e34d94d1fbf1a8c79cbb4136c4790d5f452778031caeab9301954194e514426cecff2e36df1b48c25103bd7fe39af66bba81b9e07- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast