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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 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://polymarket-odds.agentdiet.dev/v1/tls-scanner)
Output
Returns live DNS resolution results (IPv4/IPv6 addresses), TLS certificate details (issuer, expiry date, validity status), and an HTTP security header audit including grade or score, for the queried domain.
Example use cases
Vendor security due diligence
“I need to vet a new SaaS vendor before we onboard them — can you check stripe.com's TLS cert issuer, expiry date, DNS resolution, and HTTP security header grade so I can include it in my security review?”
Competitor domain OSINT
“Pull the full OSINT picture for openai.com — DNS records including IPv4 and IPv6, who issued their TLS cert and when it expires, and what their HTTP security header rating looks like.”
Certificate expiry alert check
“We've had certs expire on us before — can you check if our domain acme-corp.com has a TLS certificate that's about to expire and show me the issuer and current DNS resolution?”
Technical details
Endpoint
GEThttps://polymarket-odds.agentdiet.dev/v1/tls-scanner?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a quick, combined OSINT snapshot of a domain's DNS, TLS, and HTTP security posture in a single call, rather than stitching together separate DNS lookup, SSL checker, and security header grader tools. Particularly useful for security due diligence, vendor risk assessments, or reconnaissance workflows where you want certificate issuer/expiry, IPv4/IPv6 resolution, and security header grades in one response.
Side effects
- Domain does not exist or fails DNS resolution — returns error indicating unresolvable domain
- Domain is unreachable or times out during TLS handshake — returns connection error
- Domain has no TLS certificate (HTTP-only) — certificate fields may be null or absent
- Malformed domain input — returns validation error for invalid domain string
- Rate limiting or payment failure — HTTP 402 returned if payment not provided
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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