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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 hn-pulse.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://hn-pulse.agentdiet.dev/v1/ssl-audit)
Output
Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer, expiry date, validity status), and an HTTP security header grade/assessment for the target domain, enabling a quick OSINT snapshot of a domain's security posture.
Example use cases
Pre-launch security check for new site
“Before we go live, can you audit the DNS resolution, TLS certificate issuer and expiry, and HTTP security headers for our domain mycompany.io so we can catch any security gaps?”
Vendor domain security due diligence
“We're evaluating a new vendor — can you pull the TLS cert details and HTTP security grade for vendor-portal.example.com so I can include it in our security review?”
Monitor competitor SSL posture
“Can you check openai.com's TLS certificate — who issued it, when does it expire, and what's the HTTP security header grade?”
Technical details
Endpoint
GEThttps://hn-pulse.agentdiet.dev/v1/ssl-audit?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a real-time, combined view of a domain's DNS resolution, TLS certificate status, and HTTP security header compliance in a single call — ideal for security audits, vendor due diligence, pre-launch checks, or OSINT investigations where you want certificate issuer/expiry and security posture together without calling separate DNS and SSL tools.
Side effects
- Domain does not exist or is unresolvable — DNS lookup returns no records
- TLS certificate missing or self-signed — certificate metadata may be absent or flagged
- Domain is unreachable over HTTP/HTTPS — security header grading cannot be performed
- Invalid domain string provided — validation error returned
- Timeout on live probe — upstream connectivity issue may cause partial or empty results
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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