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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 (IPv4/IPv6), TLS certificate inspection, 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://whale-momentum.agentdiet.dev/v1/whois-lookup)
Output
Returns live DNS resolution results (IPv4/IPv6 addresses), TLS certificate details (issuer, expiry date, validity status), and an HTTP security headers grade for the queried domain.
Example use cases
Third-party vendor security vetting
“Before we onboard this new SaaS vendor, can you check their domain acmecorp.io — I need to see if their TLS certificate is valid, who issued it, when it expires, and what their HTTP security header grade looks like?”
Phishing domain investigation
“We got a suspicious email from support@paypa1-secure.com — can you run a full DNS and TLS recon on paypa1-secure.com so I can see what it actually resolves to and whether it has a legitimate SSL certificate?”
Pre-launch security posture check
“We're about to launch our new site at mybrand.com — can you pull its DNS records, check the TLS certificate issuer and expiry, and give me the HTTP security headers grade so we can see if anything needs fixing before go-live?”
Technical details
Endpoint
GEThttps://whale-momentum.agentdiet.dev/v1/whois-lookup?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a combined, live OSINT snapshot of a domain's DNS posture, TLS certificate health, and HTTP security header configuration in a single call. It is ideal for security vetting of third-party domains, phishing investigation, pre-launch audits, or compliance checks where certificate validity and security headers are relevant signals.
Side effects
- Domain does not exist or fails DNS resolution — returns error or empty DNS records
- Domain has no HTTPS/TLS endpoint — TLS certificate fields may be absent or null
- Domain blocks automated inspection — may return incomplete security header data
- Invalid domain string input — returns validation error
- Timeout on live DNS or TLS probe — returns partial or error 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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