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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 OSINT on a domain by resolving IPv4/IPv6 DNS records, inspecting TLS certificate issuer/expiry, and grading HTTP security headers.
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/osint)
Output
Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata including issuer and expiry date, and an HTTP security headers audit with a security grade — giving a snapshot of the domain's network and security posture.
Example use cases
Vendor security due diligence check
“Before we integrate with this new vendor, can you pull the domain OSINT on stripe.com — I want to know their TLS certificate details, whether their IPv6 DNS is resolving, and how their HTTP security headers score?”
Competitor SSL expiry monitoring
“Check openai.com for me — specifically when their TLS certificate expires and who issued it, so I can keep an eye on whether they're about to have an outage.”
Incident investigation for suspicious domain
“There's a domain hitting our API — malicious-lookalike-site.com — can you do a recon on it right now and tell me what DNS addresses it resolves to, who issued its TLS cert, and whether its security headers look legitimate?”
Technical details
Endpoint
GEThttps://mesh.agentdiet.dev/v1/osint?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, all-in-one OSINT snapshot of a domain's DNS resolution, TLS certificate health, and HTTP security posture without setting up separate DNS, SSL, and header-checking tools. It is ideal for security due diligence, vendor assessments, incident investigation, or monitoring competitor/third-party domains for certificate expiry or misconfiguration.
Side effects
- Domain does not exist or fails DNS resolution — returns empty or error result
- Domain has no TLS certificate — TLS fields may be null or absent
- Domain blocks probe requests — security headers may be incomplete
- Invalid or malformed domain string input — validation error returned
- Network timeout reaching the target domain — may return partial results
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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