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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 sec-intel.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://sec-intel.agentdiet.dev/v1/asn-lookup)
Output
Returns live DNS resolution data (IPv4/IPv6 addresses), TLS certificate details (issuer, expiry date), and an HTTP security header grade/analysis for the queried domain, packaged as a structured JSON object.
Example use cases
SSL certificate expiry monitoring
“Check the TLS certificate on stripe.com — I need to know who issued it and when it expires so I can flag if it's expiring soon.”
Security posture audit before partnership
“Before we onboard this vendor, can you inspect their domain vendor-corp.com and tell me their DNS setup, TLS cert details, and whether they have proper security headers like HSTS and CSP?”
OSINT recon on competitor infrastructure
“Do a network recon on competitor.io — I want to know their IPv4 and IPv6 addresses, who issued their TLS cert, and their HTTP security grade.”
Technical details
Endpoint
GEThttps://sec-intel.agentdiet.dev/v1/asn-lookup?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need live, real-time OSINT on a domain's DNS configuration, TLS certificate validity, and HTTP security posture in a single call. It is ideal for security audits, vendor due diligence, certificate expiry monitoring, or reconnaissance workflows where a current snapshot of a domain's security infrastructure is required — without needing to manually query DNS tools, certificate transparency logs, and security header checkers separately.
Side effects
- Domain does not exist or fails DNS resolution — returns error or empty DNS fields
- Domain has no TLS certificate (HTTP-only) — TLS fields may be null or absent
- Domain is unreachable or times out during live probe — returns timeout or connection error
- Invalid or malformed domain input — returns validation error
- Rate limiting or payment failure (x402) — returns 402 Payment Required
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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