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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 workflows.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 target 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://workflows.agentdiet.dev/v1/tls-scanner)
Output
Returns a structured object containing live IPv4 and IPv6 DNS resolution results, TLS certificate metadata (issuer, subject, expiry date, validity status), and HTTP security header analysis including presence/absence of headers like HSTS, CSP, X-Frame-Options, and an overall security grade.
Example use cases
Pre-launch security posture check
“Before we go live, can you scan stripe.com's TLS certificate and security headers so I can see if their setup matches what we're aiming for in our own deployment?”
Vendor due diligence recon
“I need to vet a new SaaS vendor — can you pull the DNS records, TLS cert details, and HTTP security grade for api.acme-vendor.com so I can assess their security hygiene?”
Certificate expiry monitoring alert
“Can you check when the TLS certificate for payments.mycompany.com expires and who issued it? I want to make sure we're not close to an outage.”
Technical details
Endpoint
GEThttps://workflows.agentdiet.dev/v1/tls-scanner?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, all-in-one passive reconnaissance snapshot of a domain's DNS, TLS, and HTTP security posture without setting up your own scanning infrastructure. Ideal for security audits, vendor due diligence, pre-deployment checks, or OSINT workflows where you want certificate expiry, issuer, DNS records, and security header grades in a single API call.
Side effects
- Domain does not exist or fails DNS resolution — returns DNS lookup error
- Domain is unreachable or blocks probes — TLS or header data may be incomplete
- Invalid or malformed domain string — validation error returned
- Domain has no TLS (HTTP only) — certificate fields may be empty or null
- Rate limiting or payment failure (HTTP 402) — request rejected until payment resolved
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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