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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 email-verify.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 (issuer, expiry), and HTTP security header grading for a 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://email-verify.agentdiet.dev/v1/osint)
Output
Returns live DNS resolution results (IPv4/IPv6 addresses), TLS certificate metadata (issuer, expiry date, validity), and an HTTP security header grade/audit for the target domain — all fetched in real time at the moment of the request.
Example use cases
Pre-vendor security due diligence
“Before we sign a contract with this SaaS vendor, can you pull the DNS resolution, TLS cert details, and security header grade for their domain acmecorp.io so I can check their security posture?”
SSL certificate expiry monitoring
“Check openai.com for me — specifically when their TLS certificate expires and who issued it, so I know if they're about to have an outage.”
Competitor infrastructure reconnaissance
“I need a quick OSINT snapshot of stripe.com — their IPv4 and IPv6 addresses, TLS certificate issuer, and whether their HTTP security headers are up to standard.”
Technical details
Endpoint
GEThttps://email-verify.agentdiet.dev/v1/osint?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a single, consolidated OSINT snapshot of a domain's network and security configuration — covering DNS, TLS, and HTTP security headers in one call — rather than running separate DNS lookup, SSL checker, and security header scanner tools individually. Best for security due diligence, vendor assessments, competitive recon, or pre-deployment audits.
Side effects
- Domain does not exist or cannot be resolved — DNS lookup fails with an error
- Domain resolves but TLS handshake fails (e.g. self-signed cert, expired cert) — partial results returned
- Target domain blocks or rate-limits HTTP requests — security header data unavailable
- Invalid or missing domain parameter — 400-level validation error
- Network timeout reaching the target domain — partial or empty response
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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