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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 target 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/subdomain-scan)
Output
Returns a structured JSON object containing live IPv4 and IPv6 DNS resolution results, TLS certificate details (issuer, validity period, expiry date), and an HTTP security headers grade/assessment for the queried domain.
Example use cases
Pre-acquisition domain security audit
“Before we proceed with acquiring this company, can you check the security posture of their main domain acmecorp.com — specifically the DNS resolution, TLS certificate issuer and expiry, and how their HTTP security headers look?”
Competitor SSL and headers benchmarking
“I want to compare the TLS and security header setup of our main competitor — can you run a full OSINT recon on stripe.com so I can see their certificate details and security grade?”
Monitoring vendor domain certificate health
“Check whether our vendor's domain api.vendorplatform.com still has a valid TLS certificate and hasn't let it expire — also grab the DNS resolution and security headers grade while you're at it.”
Technical details
Endpoint
GEThttps://whale-momentum.agentdiet.dev/v1/subdomain-scan?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 resolution, SSL/TLS certificate health, and HTTP security header posture without running active exploits or vulnerability scans. It is ideal for pre-acquisition due diligence, vendor risk assessments, competitive benchmarking, or certificate expiry monitoring where a single low-cost call ($0.01) returns all three signals together.
Side effects
- Domain does not exist or fails DNS resolution — empty or error response
- TLS certificate not present (HTTP-only domain) — certificate fields may be null or missing
- Domain blocks automated HTTP requests — security headers may be unavailable
- Invalid domain format supplied — validation error returned
- Upstream DNS or TLS inspection timeout — service may return partial results or error
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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