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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 whale-momentum.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Performs live DNS resolution, TLS certificate inspection, and HTTP security header grading for a given domain name.
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://whale-momentum.agentdiet.dev/v1/asn-lookup)
Output
Returns live DNS resolution results (IPv4 and/or IPv6 addresses), TLS certificate metadata including issuer and expiry date, and an HTTP security header grade reflecting the presence or absence of headers like HSTS, CSP, and X-Frame-Options.
Example use cases
Pre-vendor security due diligence
“Before we integrate with this third-party API provider, can you check their domain api.acmepayments.com for DNS health, TLS certificate details, and HTTP security header grade?”
Monitor competitor infrastructure posture
“Pull the TLS certificate info and HTTP security grade for shopify.com — I want to know who issued their cert, when it expires, and whether their security headers are solid.”
Incident response domain triage
“We got an alert about suspicious traffic to malware-domain.xyz — can you quickly look up its DNS resolution and TLS certificate issuer so we know what we're dealing with?”
Technical details
Endpoint
GEThttps://whale-momentum.agentdiet.dev/v1/asn-lookup?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, all-in-one passive OSINT snapshot of a domain's DNS, TLS, and HTTP security posture without deploying your own scanning infrastructure. It is especially useful for pre-integration vendor checks, threat triage, or competitive infrastructure monitoring where a single API call replaces running dig, openssl, and security header scanners separately.
Side effects
- Domain does not resolve — returns DNS lookup failure or empty IP list
- Domain has no TLS certificate — returns missing or null certificate fields
- Domain unreachable over HTTP/S — security header grade unavailable
- Invalid domain input (empty string, malformed) — returns 400 validation error
- Rate limiting or payment failure — 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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