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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 polymarket-odds.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 analysis 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://polymarket-odds.agentdiet.dev/v1/dns-whois-tls-recon)
Output
Returns live DNS resolution data (IPv4 and IPv6 addresses), TLS certificate details (issuer, expiry date, validity), and an HTTP security grade based on the domain's security headers — all gathered in real time from the target domain.
Example use cases
Vendor security due diligence
“Before we integrate with payments.acmecorp.com, can you check its TLS certificate issuer and expiry, DNS resolution, and HTTP security headers so I can assess their infrastructure security posture?”
Monitoring cert expiry for own domain
“Can you inspect the TLS certificate for mybusiness.io and tell me who issued it and how many days until it expires so I can renew before it lapses?”
Competitive OSINT on rival site
“I want to understand the technical security setup of competitor.com — can you pull its DNS records, TLS cert details, and HTTP security grade for me?”
Technical details
Endpoint
GEThttps://polymarket-odds.agentdiet.dev/v1/dns-whois-tls-recon?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a combined DNS + TLS + security headers snapshot of a domain in a single call, especially for security due diligence, OSINT investigations, certificate expiry monitoring, or infrastructure audits. Prefer this over manual lookups or separate tools when you need all three data layers at once without stitching together multiple APIs.
Side effects
- Domain does not exist or fails DNS resolution — returns error or empty DNS records
- Domain is unreachable or times out during TLS handshake — certificate data may be missing
- Domain serves no HTTPS — TLS certificate inspection returns null or error
- Invalid or empty domain input — returns validation error
- Domain blocks automated probes or rate-limits — may return incomplete results
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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