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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 json-repair.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 given 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://json-repair.agentdiet.dev/v1/ssl-audit)
Output
Returns live DNS resolution results (IPv4/IPv6 addresses), TLS certificate metadata (issuer, expiry date, validity), and an HTTP security headers grade reflecting the presence or absence of headers like HSTS, CSP, X-Frame-Options, and similar security controls.
Example use cases
Vendor security posture check
“Before we onboard stripe.com as a vendor, can you pull their DNS resolution, TLS certificate issuer and expiry date, and HTTP security header grade so I can include it in the due diligence report?”
Certificate expiry monitoring
“Check the TLS certificate on my domain mybusiness.com — I want to know who issued it, when it expires, and whether it's about to lapse.”
Competitor domain OSINT
“Run a security recon on openai.com — I want to see their IPv4 and IPv6 DNS records, TLS cert details, and how their HTTP security headers are graded.”
Technical details
Endpoint
GEThttps://json-repair.agentdiet.dev/v1/ssl-audit?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, unified OSINT snapshot of a domain's security posture — combining DNS resolution, TLS certificate details, and HTTP security header grading in a single call. It is preferable over manual DNS tools or separate SSL checkers when you need structured, machine-readable output for agent workflows, vendor due diligence, certificate expiry monitoring, or competitive reconnaissance.
Side effects
- Domain does not exist or fails DNS resolution — returns error or empty DNS records
- Domain has no HTTPS — TLS certificate fields will be absent or null
- Request times out if the target domain is slow or unreachable
- Invalid or malformed domain input — returns validation error
- Domain blocks automated probes — may return incomplete header data
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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