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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 mcp-compiler.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 (issuer, expiry), 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://mcp-compiler.agentdiet.dev/v1/tls-scanner)
Output
Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer, subject, expiry date, validity status), and an HTTP security header audit with a grade or score — all for the queried domain.
Example use cases
Pre-launch security audit for a new site
“We're about to launch stripe.com — can you check its TLS certificate issuer and expiry, confirm it resolves correctly on both IPv4 and IPv6, and tell me how its HTTP security headers look?”
Investigating a suspicious vendor domain
“I need to vet the domain payments-gateway.io before we integrate with them — can you pull its DNS resolution, TLS certificate details, and security header grade so I can assess whether it's legitimate?”
Monitoring a competitor's infrastructure posture
“Can you run a quick security recon on openai.com — I want to know their TLS cert issuer, expiry date, what IPs their domain resolves to, and their HTTP security grade?”
Technical details
Endpoint
GEThttps://mcp-compiler.agentdiet.dev/v1/tls-scanner?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single-call, combined view of DNS resolution, TLS certificate health, and HTTP security posture for a domain — ideal for OSINT pipelines, vendor due diligence, pre-launch audits, or monitoring competitor infrastructure. Prefer this over separate DNS, certificate, or header scanning tools when you want all three dimensions in one request at low cost.
Side effects
- Domain does not exist or fails DNS resolution — returns error or empty DNS records
- Domain has no HTTPS / TLS configured — TLS fields will be absent or show an error
- Network timeout when connecting to the target domain — may return partial results
- Invalid domain string provided (e.g. missing TLD, spaces) — validation error
- Domain is behind a firewall or blocks probes — may return incomplete or refused connection 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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