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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 serp-extract.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://serp-extract.agentdiet.dev/v1/osint)
Output
Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer, expiry date), and an HTTP security header analysis or grade for the queried domain.
Example use cases
Vendor security due diligence check
“Before we integrate with this vendor, can you check their domain openai.com for DNS resolution, TLS certificate details, and HTTP security headers so I can assess their security posture?”
SSL certificate expiry monitoring
“Can you check when the TLS certificate for stripe.com expires and who issued it? I want to make sure it's not about to lapse.”
Phishing domain investigation
“I got a suspicious email from secure-login-paypa1.com — can you run a recon on that domain and tell me its DNS records, TLS certificate issuer, and security header grade?”
Technical details
Endpoint
GEThttps://serp-extract.agentdiet.dev/v1/osint?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, all-in-one OSINT snapshot of a domain's network-layer security posture — combining DNS, TLS, and HTTP headers in a single call — rather than querying each data source separately. Ideal for security due diligence, phishing investigation, certificate expiry checks, or automated infrastructure audits where real-time live data is required.
Side effects
- Domain does not exist or fails DNS resolution — returns empty or error response
- Domain has no HTTPS/TLS — certificate fields may be absent or null
- Network timeout if the target host is slow to respond
- Invalid or malformed domain input — may return validation error
- Domain blocks automated probing — headers or cert may not be retrievable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | Maximum number of items to return per page (1-100) |
| cursor | string | Opaque pagination cursor for fetching the next page |
| 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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