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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 cve-intel.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://cve-intel.agentdiet.dev/v1/subdomain-scan)
Output
Returns live DNS resolution results (IPv4/IPv6 addresses), TLS certificate metadata (issuer, expiry date, validity status), and an HTTP security headers assessment/grade for the queried domain.
Example use cases
Pre-launch security audit
“Before we go live, can you check anthropic.com's TLS certificate — who issued it, when it expires — and tell me if the HTTP security headers are properly configured?”
Vendor security due diligence
“I need to vet a new vendor at stripe.com — can you pull their DNS resolution, check if their SSL cert is valid and not expiring soon, and grade their security headers?”
Incident OSINT investigation
“We're investigating a suspicious domain called suspicious-phishing-site.com — can you resolve its IPs, check who issued the TLS cert and when it expires, and flag any missing security headers?”
Technical details
Endpoint
GEThttps://cve-intel.agentdiet.dev/v1/subdomain-scan?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a combined, single-call OSINT snapshot of a domain's DNS posture, TLS certificate health, and HTTP security header configuration — especially useful for security audits, vendor due diligence, threat intelligence, or pre-deployment checks. Prefer this over separate DNS/WHOIS tools when you need TLS and security header data in the same response.
Side effects
- Domain does not exist or fails DNS resolution — returns empty or error for DNS fields
- Domain has no HTTPS/TLS — TLS certificate fields will be absent or null
- Network timeout reaching the target domain — may return partial results
- Invalid domain format input — returns validation error
- Domain blocks automated probes — may return incomplete security header data
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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