{"uid":"cap_TvyMdtxFOeN4OGSEcGdmo","slug":"preflight-agentdiet-dev-domain-osint-tls-certificate-security-headers-664b77b9","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://preflight.agentdiet.dev/v1/subdomain-scan)","url":"https://preflight.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_RGD7R9qqcQxqQLLUtAncX","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"preflight.agentdiet.dev","brandSlug":"preflight-agentdiet-dev-mpp","brandBaseUrl":"https://preflight.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Performs live DNS resolution (IPv4/IPv6), TLS certificate inspection, and HTTP security header grading for a given domain.","exampleAgentPrompt":"Can you run a full DNS, TLS certificate, and HTTP security headers check on stripe.com — I want to see its IP addresses, who issued the SSL cert and when it expires, and how it scores on security headers?","exampleUseCases":[{"title":"SSL certificate expiry monitoring","prompt":"Check openai.com's TLS certificate — who issued it, when does it expire, and is it still valid?"},{"title":"Pre-acquisition domain due diligence","prompt":"I'm evaluating a company and want to know if their domain acmecorp.io has proper DNS setup, a valid SSL cert, and decent HTTP security headers before we proceed."},{"title":"Competitor infrastructure OSINT","prompt":"Do a quick security recon on competitor.com — I want their IPv4 and IPv6 addresses, TLS cert details, and their HTTP security grade."}],"resultDescription":"Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate details (issuer, expiry date, validity), and an HTTP security header assessment or grade for the target domain.","failureModes":["Domain does not exist or fails to resolve — DNS lookup returns no records","Domain's HTTPS is not configured — TLS certificate data unavailable","Domain blocks or throttles external probes — incomplete header data returned","Invalid or malformed domain string input — request rejected with validation error","Transient network error during live probe — partial or empty response"],"whenToPreferThis":"Use this endpoint when you need live, real-time DNS resolution, TLS certificate inspection, and HTTP security header analysis for a specific domain in a single call. It is ideal for security audits, OSINT reconnaissance, pre-acquisition due diligence, monitoring certificate expiry, or verifying infrastructure posture — especially when you want all three signals (DNS, TLS, headers) in one request rather than querying separate tools.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:32.741Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-domain-osint-tls-certificate-security-headers-fa82a7d0"}