collegeboard.org
Last scanned 23h ago; the signed record is unchanged since 31d 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 onAmazon
AmazonEmail byProofpoint
ProofpointSecured byLet's Encrypt
Let's EncryptRegistered withSafeNames Ltd.
Also usesHackerOne1PasswordAmazon SESAnthropicAppleAtlassianCalendlyCanva
HackerOne
1Password
Amazon SES
Anthropic
Apple
Atlassian
Canvaeducation_expanded
Every line above is a signed observation. Check the math at the bottom of the page.
DRIFT
Steady. No change on record for collegeboard.org 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 44
A2NS4MX2TXT31SRV4SOA1
TLS certificates 3
Issued byLet's Encrypt
ExpiresSun, 18 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 receiptEd25519 receiptthe raw cryptographic proof
- Receipt ID
rcpt_e2fadd4844854f38- Output Hash
42d946e00c160199f8cc7f1893acc3334469652c9ccdc43ecb9f46ca2277599a- Signature
ed25519:e185d2ee89cd539ce90254732a5bdb3f3e48eaa931e1be90731dce4cba33ec6f151a44e56bda810c936e551abc14b7f9a57bf0ef2c3424ebdfb331791e852203- Public Key
ed25519:4859bb613d650e12dd7478cc307c73a8712fabc115a9dc59f65534ed3c09a8f9- Parent
(genesis)- Plane
- fast