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Overview

Fetch TLS certificate details for a host.

Rate Limiting

  • Default: 30 requests per 60 seconds per IP address
  • Returns 429 status when exceeded
  • Headers: Retry-After, X-RateLimit-Limit, X-RateLimit-Remaining, X-RateLimit-Reset

Caching

  • Results are cached in-memory for 30 minutes (configurable via CACHE_TTL_MS)
  • Cache key includes revocation check flag

CORS

  • Enabled for all origins with GET, POST, OPTIONS methods

Revocation Checks

  • Can be enabled per-request via revocationCheck: true
  • Checks OCSP first, falls back to CRL if needed
  • Configurable via REVOCATION_MODE (ocsp, crl, or off)
  • OpenAPI version: 3.0.3