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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 reconnaissance on a domain including IPv4/IPv6 DNS resolution, TLS certificate issuer and expiry, and HTTP security header grading.
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/asn-lookup)
Output
Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer, expiry date), and an HTTP security header grade or breakdown for the specified domain.
Example use cases
Vendor security due diligence check
“Before we integrate with this third-party vendor, can you pull up the TLS certificate details, DNS info, and HTTP security header grade for their domain api.vendorcorp.com?”
SSL certificate expiry monitoring
“Can you check when the TLS certificate for mybusiness.com expires and who issued it? I want to make sure we don't get caught off guard.”
Competitor security posture analysis
“I want to compare the security posture of stripe.com — can you look up its DNS resolution, TLS certificate issuer and expiry, and its HTTP security headers grade?”
Technical details
Endpoint
GEThttps://hn-pulse.agentdiet.dev/v1/asn-lookup?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need live, real-time OSINT data on a domain's DNS resolution, TLS certificate status, and HTTP security posture in a single call. Prefer it over manual lookup tools or passive WHOIS-only services when you need current certificate expiry, issuer chain, and active security header grades together.
Side effects
- Domain does not exist or fails DNS resolution — returns empty or error response
- Domain is unreachable or times out during live probe — may return partial data or error
- Invalid domain format provided — validation error returned
- TLS certificate absent or unreachable HTTPS endpoint — certificate fields may be null
- Rate limiting or payment failure — HTTP 402 or 429 response
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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