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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, TLS certificate inspection, and HTTP security header grading for any 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/subdomain-scan)
Output
Returns live DNS resolution results (IPv4/IPv6 addresses), TLS certificate metadata (issuer, expiry date, validity), and an HTTP security header grade along with details about which security headers are present or missing on the target domain.
Example use cases
SSL certificate expiry monitoring
“Check openai.com's TLS certificate — who issued it and when does it expire?”
Security header compliance audit
“Audit the HTTP security headers for stripe.com and tell me what grade it gets and which headers are missing.”
Domain infrastructure OSINT
“I need to know the IPv4 and IPv6 addresses that github.com resolves to along with its TLS certificate details — can you pull that up?”
Technical details
Endpoint
GEThttps://json-repair.agentdiet.dev/v1/subdomain-scan?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, all-in-one domain security snapshot covering DNS, TLS, and HTTP headers in a single call. It is ideal for OSINT reconnaissance, security audits, certificate monitoring, and infrastructure discovery on any live domain without requiring manual lookups across multiple tools.
Side effects
- Domain does not exist or fails DNS resolution — returns empty or error response
- Domain is unreachable or times out during live probing
- TLS certificate is self-signed or missing — may return partial certificate data
- HTTP endpoint redirects or blocks probing — security header results may be incomplete
- Invalid domain format provided — returns validation error
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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Zero review prompt (fires after every successful call)
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