{"uid":"cap_xhZKsEWlG_y8PjNdHtWT1","slug":"email-verify-agentdiet-dev-domain-osint-tls-certificate-security-e9aeb783","name":"Domain OSINT, TLS Certificate & Security Headers Recon","description":"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/subdomain-scan)","url":"https://email-verify.agentdiet.dev/v1/subdomain-scan?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string","minLength":1,"description":"Target domain name (e.g. anthropic.com, openai.com) for DNS, TLS certificate, and security header OSINT"}}},"responseSchema":{"type":"object"},"example":null,"exampleRequest":null,"tags":[],"displayCostAmount":"0.01","displayCostAsset":"USD","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"mpp","network":"tempo","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_tYO_BBYQizQuVC5h6CPpR","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"email-verify.agentdiet.dev","brandSlug":"email-verify-agentdiet-dev-mpp","brandBaseUrl":"https://email-verify.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Performs live DNS resolution (IPv4/IPv6), TLS certificate inspection (issuer, expiry), and HTTP security header grading for a given domain.","exampleAgentPrompt":"Can you do a full domain OSINT scan on stripe.com — I want to see its DNS resolution (IPv4 and IPv6), TLS certificate issuer and expiry date, and an HTTP security header grade?","exampleUseCases":[{"title":"Pre-acquisition security due diligence","prompt":"We're evaluating acquiring techstartup.io — can you pull their DNS records, check their TLS cert issuer and when it expires, and grade their HTTP security headers so I can include it in the due diligence report?"},{"title":"Monitoring competitor TLS posture","prompt":"Run a security recon on our main competitor shopify.com — I want to know their IP addresses, who issued their SSL certificate, how long until it expires, and how their security headers stack up."},{"title":"Verifying own domain security before launch","prompt":"Before we go live, check our domain myapp.example.com for its DNS resolution, TLS certificate details, and HTTP security header grade so we can catch any misconfigurations."}],"resultDescription":"Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate details (issuer, expiry date, validity status), and an HTTP security header grade or breakdown indicating which security headers are present or missing.","failureModes":["Domain does not exist or fails DNS resolution — returns error or empty DNS fields","Domain has no HTTPS/TLS — TLS certificate fields may be null or absent","Firewall or rate-limiting blocks the probe — may return timeout or connection error","Invalid domain format supplied — returns validation error","Domain resolves but HTTP request is redirected in an unexpected way — security headers may reflect the redirect target"],"whenToPreferThis":"Choose this endpoint when you need passive, read-only OSINT on a domain's network and security posture — specifically DNS resolution, TLS certificate metadata, and HTTP security header grading — without triggering active vulnerability scanning. Ideal for due diligence, pre-launch audits, competitor recon, or certificate expiry monitoring. Prefer this over generic WHOIS lookups when you need live TLS and security header data in a single call.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:39.026Z","isFirstParty":false,"canonicalSlug":"email-verify-agentdiet-dev-domain-osint-tls-certificate-security-e635d6db"}