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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/dns-whois-tls-recon)
Output
Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer name, expiry date/validity), and an HTTP security headers assessment/grade for the queried domain, all gathered in a single call.
Example use cases
Pre-vendor security due diligence
“Before we integrate with this new SaaS vendor, can you check their domain api.newvendor.com — I want to know their DNS resolution, who issued their TLS cert, when it expires, and whether their HTTP security headers are up to scratch?”
SSL certificate expiry monitoring
“Can you check if the TLS certificate on payments.mycompany.com is close to expiring, and tell me who the issuer is?”
Competitive infrastructure OSINT
“I'm doing some recon on a competitor — can you look up the DNS records, TLS certificate details, and HTTP security header grade for competitor.io?”
Technical details
Endpoint
GEThttps://mcp-compiler.agentdiet.dev/v1/dns-whois-tls-recon?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a combined DNS + TLS + HTTP security header snapshot for a domain in one call, rather than querying separate tools for each. Ideal for security audits, vendor due diligence, competitive OSINT, or certificate expiry monitoring. Prefer this over generic WHOIS tools when TLS certificate details and HTTP security grading are also required.
Side effects
- Domain does not exist or fails to resolve — likely returns an error indicating DNS lookup failure
- Domain has no TLS/HTTPS — certificate inspection fields may be empty or null
- Timeout on live network probe — may return partial results or a timeout error
- Invalid domain format passed — returns a validation error
- Domain actively blocks probes — may return incomplete or empty security header 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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