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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 mesh.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Performs live DNS resolution, TLS certificate inspection, and HTTP security header grading for any target 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://mesh.agentdiet.dev/v1/cert-transparency)
Output
Returns live DNS resolution results (IPv4/IPv6 addresses), TLS certificate details (issuer, validity dates, expiry), and an HTTP security header grade summarizing the presence or absence of headers like HSTS, CSP, X-Frame-Options, and others.
Example use cases
Pre-acquisition domain security audit
“We're thinking about acquiring example-startup.com — can you pull up its DNS records, TLS cert issuer and expiry, and give me an HTTP security header grade so I know the state of their infrastructure?”
Monitor competitor SSL posture
“Check the TLS certificate and security headers on our main competitor's site, acme-corp.com — I want to know who issued their cert, when it expires, and whether they have any missing security headers.”
Verify own domain security before launch
“Before we go live, can you run a full DNS, TLS cert, and security header inspection on my-new-product.io and tell me if there are any obvious security gaps I should fix?”
Technical details
Endpoint
GEThttps://mesh.agentdiet.dev/v1/cert-transparency?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, live, single-call OSINT snapshot covering DNS resolution, TLS certificate health, and HTTP security header posture for any domain — especially useful for security audits, competitor reconnaissance, pre-acquisition due diligence, or verifying your own infrastructure before launch. Prefer it over manual certificate transparency log searches when you need actionable, consolidated results in one request.
Side effects
- Domain does not exist or fails DNS resolution — returns empty or error response
- Domain is reachable only via IPv4 or only IPv6 — partial results returned
- TLS certificate is self-signed or expired — may return anomalous cert data
- HTTP endpoint returns non-standard status codes preventing header analysis
- Domain actively blocks automated probes — may result in timeout or incomplete data
- Invalid domain format provided — validation error returned
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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