Domain OSINT, TLS Certificate & Security Headers Recon

Choose this endpoint when you need a single-call OSINT snapshot of a domain's DNS resolution, TLS certificate status, and HTTP security posture without setting up your own scanning infrastructure. It is particularly useful for security due diligence on vendors or competitors, certificate expiry monitoring, and quick reconnaissance during threat investigations. Prefer this over generic WHOIS services when TLS and security header data are also required alongside DNS resolution.

• Domain does not exist or has no DNS records — returns empty or error response
• TLS certificate is absent or self-signed — may return partial data or an error flag
• Domain is unreachable during live probe — may result in timeout or connection error
• Invalid domain format supplied — returns validation error
• HTTP security headers unavailable if domain does not serve HTTP/HTTPS — returns partial result