Domain OSINT, TLS Certificate & Security Headers Recon

Choose this endpoint when you need a quick, all-in-one security reconnaissance snapshot of a domain covering DNS, TLS, and HTTP security headers in a single call. Prefer it over manual lookups or separate tools when you want live data (not cached) and need to assess a domain's security posture rapidly — e.g. during due diligence, incident response, or competitive analysis. It is especially useful when you need TLS certificate expiry and issuer information combined with security header grading in one request.

• Domain does not exist or fails DNS resolution — returns error or empty DNS fields
• Domain has no TLS certificate (HTTP-only site) — TLS fields may be null or absent
• Connection timeout if the target domain is unreachable or rate-limiting
• Invalid domain format supplied — returns validation error
• Domain resolves but HTTPS connection refused — TLS data unavailable