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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 mesh.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, 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://mesh.agentdiet.dev/v1/dns-recon)
Output
Returns live DNS resolution data including IPv4 and IPv6 addresses, TLS certificate details such as issuer, subject, and expiry date, and an HTTP security grade based on the presence and configuration of security headers like HSTS, CSP, X-Frame-Options, and similar.
Example use cases
Pre-launch security audit for new site
“Before we go live, can you check the DNS resolution, TLS certificate issuer and expiry, and HTTP security header grade for our domain mybrand.io?”
Competitor domain intelligence gathering
“I'm doing some OSINT on a competitor — can you pull the DNS records, SSL certificate details, and security header analysis for openai.com?”
Certificate expiry monitoring alert
“Can you check the TLS certificate for api.acmecorp.com and tell me who issued it and when it expires so I can flag it if it's within 30 days of expiring?”
Technical details
Endpoint
GEThttps://mesh.agentdiet.dev/v1/dns-recon?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, all-in-one passive recon snapshot of a domain covering DNS, TLS certificate health, and HTTP security posture. It is well-suited for security audits, OSINT investigations, pre-launch checklists, or certificate expiry monitoring. Prefer it over separate DNS/TLS tools when you want a single call returning all three signal categories in one response.
Side effects
- Domain does not exist or fails DNS resolution — likely returns an error or empty DNS records
- Domain exists but does not serve HTTPS — TLS fields may be null or absent
- Payment not received (x402) — returns 402 Payment Required
- Domain is unreachable or times out — connection error returned
- Invalid or malformed domain string provided — 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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