Domain OSINT, TLS Certificate & Security Headers Recon

Choose this endpoint when you need a combined, real-time view of a domain's DNS, TLS, and HTTP security posture in a single call, particularly for OSINT investigations, security audits, or due diligence workflows. It is especially useful when you need TLS certificate metadata (issuer, expiry) alongside security header grading without operating your own scanning infrastructure.

• Domain does not exist or fails DNS resolution — likely returns an error or empty DNS fields
• TLS handshake failure if the target has no HTTPS endpoint — certificate fields may be null
• Domain parameter missing or malformed — returns 400 validation error
• Target host is unreachable or times out — may return a timeout or partial result
• Payment not included or insufficient — returns HTTP 402 requiring x402 payment