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Domain Intelligence TLS Certificate Lookup
x402
Domain Intelligence TLS Certificate Lookup is a paid API for AI agents from domain-intelligence.nordman-tehau.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-11).
Retrieves TLS/SSL certificate details for a given domain, including issuer, validity dates, subject alt names, and fingerprint.
Price / call$0.001
Success—
StatusUnknown
How this service works
Deterministic DNS/RDAP/TLS domain intelligence for AI agents. x402 inline, no account.
Output
Returns a JSON object containing: TLS version (e.g. TLSv1.2), issuer common name, subject common name, certificate validity window (notBefore, notAfter), list of subject alternative names, SHA-256 fingerprint in hex, certificate count, DER length, and whether the result was cached. Also includes overall success flag and data age in seconds.
Example use cases
Expiry monitoring for production domains
“Check the TLS certificate for api.mycompany.com and tell me when it expires and who issued it — I want to know if we're close to needing a renewal.”
Security audit of third-party vendor domain
“I need the TLS certificate info for payments.vendor.com — specifically the issuer, fingerprint, and which subject alt names are covered.”
Verifying certificate after deployment
“We just deployed a new cert on staging.myapp.io — can you confirm what TLS version it's running, when it's valid from and to, and that the subject CN looks right?”
Technical details
Endpoint
GEThttps://domain-intelligence.nordman-tehau.workers.dev/tls?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need deterministic, structured TLS certificate metadata for a domain without setting up an account or managing auth tokens. It is ideal for agents doing security audits, certificate expiry monitoring, vendor assessments, or post-deployment verification. It complements the sibling DNS and RDAP endpoints on the same host for full domain intelligence. Prefer it over browser-based or manual certificate inspection when you need machine-readable cert data at low cost ($0.001 USDC per call) via x402 inline payment.
Side effects
- Invalid or non-existent domain returns error with ok:false
- Domain with no TLS/HTTPS returns empty or error TLS block
- Network timeout reaching the target domain
- Malformed domain query parameter causes 400-level response
- Domain resolves but certificate is expired or self-signed — data still returned but may indicate invalid state
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"tls": {
"ok": true,
"result": {
"issuerCN": "Example CA",
"notAfter": "2027-03-01T23:59:59Z",
"certCount": 2,
"derLength": 1234,
"notBefore": "2026-03-01T00:00:00Z",
"subjectCN": "example.com",
"tlsVersion": "TLSv1.2",
"subjectAltNames": [
"example.com",
"www.example.com"
],
"fingerprintSha256Hex": "ab:cd:ef:..."
}
},
"cached": false,
"domain": "example.com",
"data_age_seconds": 0
}
}Tags
x402
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