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Domain OSINT, TLS Certificate & Security Headers Recon
Domain OSINT, TLS Certificate & Security Headers Recon is a paid API for AI agents from github-audit.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Performs live DNS resolution (IPv4/IPv6), TLS certificate inspection, and HTTP security header grading for a given domain
Price / call$0.01
Success—
StatusUnknown
How this service works
Inspects live IPv4/IPv6 DNS resolution, TLS certificate issuer/expiry, and HTTP security grade. (Live x402 v2, IETF MPP & MCP endpoint at https://github-audit.agentdiet.dev/v1/ssl-audit)
Output
Returns live DNS resolution results (IPv4/IPv6 addresses), TLS certificate metadata (issuer, expiry date, validity), and an HTTP security header grade reflecting the presence and quality of headers like HSTS, CSP, X-Frame-Options, and similar security controls.
Example use cases
Vendor security due diligence
“I'm evaluating a new SaaS vendor at paymentpro.io — can you check their SSL certificate issuer, expiry date, DNS resolution, and HTTP security header grade so I can assess their security posture?”
Certificate expiry monitoring
“Can you pull the TLS certificate expiry details for mybusiness.com? I want to make sure our cert isn't about to expire and confirm who the issuer is.”
Competitive infrastructure OSINT
“I want to do a quick domain recon on competitor.com — give me their IPv4 and IPv6 addresses, who issued their TLS cert, and how their HTTP security headers are graded.”
Technical details
Endpoint
GEThttps://github-audit.agentdiet.dev/v1/ssl-audit?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need live, real-time DNS, TLS, and HTTP security intelligence for a specific domain — particularly for security due diligence, certificate expiry checks, infrastructure OSINT, or vendor security assessments. It is preferable over static database lookups when freshness matters and over general-purpose web scrapers when structured certificate and security header data is specifically needed.
Side effects
- Domain does not exist or cannot be resolved — DNS lookup failure returned
- Domain is unreachable or times out — connection timeout error
- Domain has no TLS certificate (HTTP only) — certificate inspection returns null or error
- Invalid domain format provided — input validation error
- Transient network error during live inspection — retry-able failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| domainrequired | string | Target domain name (e.g. anthropic.com, openai.com) for DNS, TLS certificate, and security header OSINT |
Output
Schema · Response
{
"type": "object"
}Reviews
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