Domain OSINT, TLS Certificate & Security Headers Recon

Choose this endpoint when you need a fast, single-call OSINT snapshot of a domain's DNS posture, TLS certificate health, and HTTP security header configuration — especially useful for security audits, third-party vendor assessments, or monitoring domain infrastructure changes. Prefer this over manual dig/curl workflows when you need structured, machine-readable output combining DNS + TLS + security headers in one call.

• Domain does not exist or fails DNS resolution — likely returns an error indicating the domain could not be resolved
• Domain has no HTTPS/TLS — TLS fields may be null or missing
• Domain blocks automated requests — HTTP security header inspection may time out or return incomplete data
• Invalid domain input (empty string, malformed) — returns validation error
• Network timeout reaching the target domain — may return partial results or a timeout error