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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 reconnaissance on a domain, returning IPv4/IPv6 DNS resolution, TLS certificate issuer/expiry details, and HTTP security header grades.
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/whois-lookup)
Output
Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer, expiry date, validity), and an HTTP security header assessment including presence/absence of headers like HSTS, CSP, X-Frame-Options, and an overall security grade for the domain.
Example use cases
Pre-integration vendor security check
“Before we integrate with payments.acme.com, can you check its TLS certificate details, DNS resolution, and security header grade so I can assess the risk?”
SSL certificate expiry monitoring
“Can you check when the TLS certificate for mybusiness.io expires and who issued it? I want to know if we're close to a renewal deadline.”
Competitor security posture research
“Run a security recon on shopify.com — I want to see their IPv4 and IPv6 DNS records, TLS cert issuer, and whether their HTTP security headers are well configured.”
Technical details
Endpoint
GEThttps://mesh.agentdiet.dev/v1/whois-lookup?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a fast, combined OSINT snapshot of a domain's DNS, TLS, and HTTP security posture in a single call. It is ideal for pre-integration vendor vetting, certificate expiry monitoring, competitive security research, or threat intelligence enrichment where you need real live data rather than cached WHOIS records. Prefer this over generic WHOIS lookups when TLS and security header analysis are specifically required.
Side effects
- Domain does not exist or is unresolvable — DNS lookup fails with an error
- Domain is reachable but serves no HTTPS — TLS certificate data unavailable
- Network timeout if the target domain is slow to respond
- Invalid domain string provided — validation error returned
- Domain blocks automated scanning — incomplete header data 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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