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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 (last checked 2026-10-23).
Performs live reconnaissance on a domain including IPv4/IPv6 DNS resolution, TLS certificate issuer and expiry details, and HTTP security header grading.
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/domain-osint)
Output
Returns live-fetched data including resolved IPv4 and IPv6 addresses for the domain, TLS certificate details (issuer, validity dates, expiry), and an HTTP security header audit with a security grade indicating the presence or absence of headers like HSTS, CSP, X-Frame-Options, and others.
Example use cases
Pre-acquisition domain security check
“Before we finalize buying this SaaS company, can you audit the security posture of their main domain acmecorp.io — I need to see their DNS setup, TLS certificate details, and whether their HTTP security headers are solid?”
SSL certificate expiry monitoring
“Can you check when the TLS certificate for payments.mycompany.com expires and who issued it? I want to make sure we're not at risk of an unexpected cert failure.”
Competitor infrastructure OSINT
“I'm doing competitive research — can you pull DNS, TLS, and HTTP security header info on stripe.com so I can see what their infrastructure looks like?”
Technical details
Endpoint
POSThttps://x402-audit.agentdiet.dev/v1/domain-osint?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need live, real-time DNS, TLS, and HTTP security header intelligence on a specific domain in a single call. It's ideal for security audits, pre-acquisition due diligence, certificate expiry checks, and infrastructure OSINT where you need all three signals together rather than querying separate tools.
Side effects
- Domain does not resolve — returns DNS failure or empty record set
- Domain refuses TLS connection — certificate details unavailable
- HTTP security headers unretrievable if domain blocks HTTP requests
- Invalid or malformed domain input returns validation error
- Timeout if target domain is slow or unreachable
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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