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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 reconnaissance on a domain including IPv4/IPv6 DNS resolution, TLS certificate issuer/expiry details, and HTTP security header grading
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/ssl-audit)
Output
Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer, validity period, expiry date), and an HTTP security headers assessment including a security grade for the target domain
Example use cases
Pre-vendor security due diligence
“Before we integrate with this new payments vendor, can you pull the DNS records, TLS certificate info, and security header grade for paymentsprovider.io so I can assess their security posture?”
Monitor SSL certificate expiry
“Can you check when the SSL certificate for mybusiness.com is going to expire and who issued it, so I can make sure we renew it in time?”
Competitive security benchmarking
“I want to compare the HTTP security headers and TLS setup of competitor.com against ours — can you run a full DNS, certificate, and security header audit on their domain?”
Technical details
Endpoint
GEThttps://serp-extract.agentdiet.dev/v1/ssl-audit?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need live, real-time OSINT on a specific domain's DNS, TLS certificate health, and HTTP security posture in a single call. Prefer it over manual lookups or separate tools when you need consolidated security reconnaissance — especially for vendor due diligence, SSL expiry monitoring, or competitive security analysis. It is particularly useful for agents that need to validate a domain's certificate issuer and expiry without scraping a full web page.
Side effects
- Domain does not exist or fails DNS resolution — returns error indicating unresolvable domain
- Domain has no TLS certificate (HTTP-only) — certificate fields may be null or absent
- Domain is unreachable or times out — returns timeout or connectivity error
- Invalid domain format provided — returns validation error
- Domain has expired or been suspended — DNS resolution fails
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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