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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 (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://whale-momentum.agentdiet.dev/v1/cert-transparency)
Output
Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer, validity period, expiry date), and an HTTP security header grade assessing the domain's security posture.
Example use cases
Pre-launch SSL certificate check
“Before we go live, can you inspect the TLS certificate on api.mycompany.com — I need to know who issued it, when it expires, and whether the DNS resolves correctly on both IPv4 and IPv6?”
Vendor security due diligence
“We're onboarding a new SaaS vendor at stripe.com — can you pull their domain OSINT including TLS cert details, security header grade, and DNS resolution so I can add it to our risk assessment?”
Phishing domain investigation
“I got a suspicious email from a domain that looks like our bank. Can you recon the domain evil-bank-login.com and tell me its DNS records, TLS certificate issuer, and security header posture so I can determine if it's legit or a phishing site?”
Technical details
Endpoint
GEThttps://whale-momentum.agentdiet.dev/v1/cert-transparency?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a combined DNS + TLS + HTTP security header snapshot of a domain in a single call, especially for OSINT investigations, security audits, vendor due diligence, or phishing domain analysis. It is preferable over separate DNS or SSL checker tools when you want all three data dimensions without multiple API calls.
Side effects
- Domain does not exist or fails DNS resolution — returns error or empty DNS records
- Domain is unreachable or times out — TLS/HTTP checks may return null or timeout error
- Domain exists but has no HTTPS — TLS certificate fields will be absent
- Malformed domain input — validation error returned
- Rate limiting or network-level block on the target domain — incomplete 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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