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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 defi-yield.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, and HTTP security header grading for any 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://defi-yield.agentdiet.dev/v1/tls-scanner)
Output
Returns live DNS resolution results including IPv4 and IPv6 addresses, TLS certificate details such as issuer CA and expiration date, and an HTTP security header grade reflecting the presence or absence of headers like HSTS, CSP, X-Frame-Options, and others.
Example use cases
Pre-launch security check for new domain
“Before we go live, scan newproduct.example.com and tell me its TLS certificate issuer and expiry date, whether IPv6 DNS resolves correctly, and what security header grade it gets.”
Vendor security due diligence
“I need to vet a third-party vendor — can you pull the TLS certificate details, DNS records, and HTTP security grade for thirdpartyvendor.com so I can assess their security posture?”
Certificate expiry monitoring alert
“Check stripe.com's TLS certificate right now and tell me exactly when it expires and who the issuer is — I want to know if it's within 30 days of renewal.”
Technical details
Endpoint
GEThttps://defi-yield.agentdiet.dev/v1/tls-scanner?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, live OSINT snapshot of a domain's DNS, TLS certificate, and HTTP security headers in a single call — ideal for security audits, vendor due diligence, certificate expiry monitoring, or pre-deployment checks. Prefer it over manual lookups or separate DNS/TLS tools when you need structured, machine-readable output for agent workflows.
Side effects
- Domain does not exist or fails DNS resolution — returns error or empty DNS result
- Domain has no TLS/HTTPS — certificate fields may be null or absent
- Network timeout reaching the target domain — returns timeout error
- Invalid domain input (e.g. URL instead of hostname) — returns validation error
- Domain actively blocks scanning probes — may return incomplete 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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