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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 x402-audit.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown.
Performs live OSINT on a domain by inspecting its IPv4/IPv6 DNS resolution, TLS certificate issuer and expiry, and HTTP security header grade.
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://x402-audit.agentdiet.dev/v1/osint)
Output
Returns a structured object containing live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer, subject, expiry date, validity status), and an HTTP security headers audit grade, giving a full OSINT snapshot of the target domain's network and security configuration.
Example use cases
Pre-launch security posture check
“Before we go live, can you audit the DNS resolution, TLS certificate details, and HTTP security grade for myapp.io so I know if there are any obvious security gaps?”
Vendor due diligence domain recon
“I need to vet a new vendor — can you pull the OSINT on their domain supplierco.com, including their TLS certificate issuer and expiry and their HTTP security header grade?”
Detect expired or mismatched TLS cert
“I'm getting browser warnings about openai.com — can you check when their TLS certificate expires, who issued it, and whether DNS is resolving correctly?”
Technical details
Endpoint
POSThttps://x402-audit.agentdiet.dev/v1/osint?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a live, real-time OSINT snapshot combining DNS resolution, TLS certificate inspection, and HTTP security grading in a single call. It is ideal for security audits, vendor vetting, pre-deployment checks, or threat reconnaissance where you need authoritative live data rather than cached records. Prefer this over general-purpose DNS lookup tools when you also need TLS and HTTP security header analysis in one response.
Side effects
- Domain does not exist or has no DNS records — returns empty or null DNS fields
- TLS certificate unreachable or connection refused — certificate fields may be null or error indicated
- Invalid domain string input — validation error returned
- Domain resolves but HTTP server is unreachable — security headers grade unavailable
- Timeout on live DNS/TLS probe for slow or geographically distant domains
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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