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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 email-verify.agentdiet.dev, paid per call via MPP, $0.01/call, status unknown (last checked 2026-10-21).
Performs live DNS resolution, 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://email-verify.agentdiet.dev/v1/dns-recon)
Output
Returns live DNS resolution results (IPv4/IPv6 addresses), TLS certificate details including issuer and expiry date, and an HTTP security header grade for the queried domain
Example use cases
Pre-integration vendor security check
“Before we integrate with this payment processor, can you pull the DNS records, TLS cert details, and HTTP security headers for paymentco.com so I can assess their security posture?”
Certificate expiry monitoring for DevOps
“Check when the TLS certificate for api.mycompany.com expires and who issued it — I want to make sure we're not about to go down with an expired cert.”
Competitor domain OSINT research
“I need a full DNS and TLS recon on competitor.com — give me their IPv4 and IPv6 addresses, certificate issuer, expiry date, and HTTP security grade.”
Technical details
Endpoint
GEThttps://email-verify.agentdiet.dev/v1/dns-recon?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, combined DNS + TLS + HTTP security header snapshot for a domain in a single call, especially for OSINT workflows, vendor due diligence, certificate expiry monitoring, or pre-integration security checks. Prefer this over separate DNS lookup tools when you also need TLS certificate issuer/expiry and security header grading in one response.
Side effects
- Domain does not exist or fails DNS resolution — returns error or empty DNS fields
- Domain is unreachable or times out during TLS handshake — TLS fields may be null or error
- Domain uses HTTP only with no TLS — certificate fields will be absent
- Invalid or malformed domain input — returns validation error
- Firewall or geo-block prevents live probing — partial or failed 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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