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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 serp-extract.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://serp-extract.agentdiet.dev/v1/dns-whois-tls-recon)
Output
Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer, expiry date, validity), and an HTTP security header grade along with details on which security headers (e.g. HSTS, CSP, X-Frame-Options) are present or missing.
Example use cases
Pre-deployment security audit
“Before we go live, can you check openai.com's TLS certificate issuer and expiry, DNS resolution, and HTTP security header grade so I can compare it to our own setup?”
Certificate expiry monitoring check
“Can you inspect the TLS certificate for stripe.com and tell me when it expires and who issued it? I want to know if it's coming up for renewal soon.”
Competitor domain OSINT research
“I'm doing security research — can you pull full DNS, TLS, and HTTP security header details for github.com so I can see their security posture?”
Technical details
Endpoint
GEThttps://serp-extract.agentdiet.dev/v1/dns-whois-tls-recon?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a combined OSINT snapshot of a domain's DNS, TLS, and HTTP security posture in a single call, rather than running separate DNS lookup, SSL check, and header inspection tools. It is ideal for security researchers, DevSecOps workflows, and AI agents performing pre-deployment or competitive domain audits where live, real-time data is required.
Side effects
- Domain does not exist or fails DNS resolution — returns error with no DNS records
- Domain is unreachable or times out during TLS handshake — returns partial results or timeout error
- Domain uses non-standard ports or HTTP-only — TLS certificate data unavailable
- Invalid domain format supplied — returns validation error
- Rate limiting or payment failure (HTTP 402) — returns payment required error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | Maximum number of items to return per page (1-100) |
| cursor | string | Opaque pagination cursor for fetching the next page |
| 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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