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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 any 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://json-repair.agentdiet.dev/v1/dns-whois-tls-recon)
Output
Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer, common name, expiry dates, chain info), and an HTTP security header audit including grades/scores for headers like HSTS, CSP, X-Frame-Options, and similar security controls.
Example use cases
Pre-acquisition domain security audit
“Before we finalize this acquisition, can you check the security posture of acmecorp.com — I need their DNS resolution, TLS cert issuer and expiry date, and how their HTTP security headers score?”
Monitoring a competitor's SSL cert
“Pull the TLS certificate details for stripe.com — I want to know who issued it, when it expires, and what their HTTP security grade looks like.”
Investigating a suspicious phishing domain
“I got a suspicious email from someone claiming to be from paypa1.com — can you do a full DNS and TLS recon on that domain so I can see what's actually behind it?”
Technical details
Endpoint
GEThttps://json-repair.agentdiet.dev/v1/dns-whois-tls-recon?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a combined, live snapshot of a domain's DNS infrastructure, TLS certificate health, and HTTP security posture in a single call — especially useful for OSINT investigations, pre-engagement security assessments, third-party vendor risk checks, or monitoring certificate expiry. Prefer this over separate DNS lookup or SSL checker tools when you need all three signals together cheaply ($0.01/call).
Side effects
- Domain does not exist or cannot be resolved — DNS lookup fails with NXDOMAIN
- TLS certificate absent or invalid — HTTPS not supported on the target domain
- Domain is unreachable or times out during live probe
- Malformed or empty domain input — validation error returned
- Rate limiting or payment failure for the $0.01 per-call fee
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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