{"uid":"cap_PrXbkddcn_cX99nw9wjLr","slug":"preflight-agentdiet-dev-domain-osint-tls-certificate-security-headers-fbf41a02","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/asn-lookup)","url":"https://preflight.agentdiet.dev/v1/asn-lookup?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_uQ82yO4haSyJ2iKbWJexY","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 (issuer, expiry), and HTTP security header grading for a given domain.","exampleAgentPrompt":"Can you check the TLS certificate issuer and expiry, DNS resolution, and HTTP security grade for anthropic.com?","exampleUseCases":[{"title":"Pre-launch domain security audit","prompt":"Before we go live, can you check the TLS certificate details, DNS resolution, and security headers grade for our new site mycompany.com so we know if anything looks off?"},{"title":"Third-party vendor security vetting","prompt":"We're about to integrate with a vendor — can you pull the DNS, TLS certificate issuer and expiry, and HTTP security grade for vendor-api.example.com so I can include it in our due diligence report?"},{"title":"Detect expiring SSL certificate","prompt":"I want to make sure payments.acmecorp.com isn't about to have an SSL outage — can you check the TLS certificate expiry date and who issued it?"}],"resultDescription":"Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer name, expiry date), and an HTTP security headers grade reflecting the domain's overall security posture.","failureModes":["Domain does not exist or fails DNS resolution — returns error or empty DNS result","Domain is unreachable over HTTPS — TLS certificate data unavailable","Domain has no IPv6 record — IPv6 field empty or null","HTTP server does not respond — security headers grade cannot be computed","Malformed or missing domain input — returns validation error"],"whenToPreferThis":"Choose this endpoint when you need a fast, single-call lookup combining DNS, TLS certificate, and HTTP security header intelligence for a domain — particularly useful for security vetting, OSINT investigations, vendor due diligence, or certificate expiry monitoring, without needing to stitch together separate DNS, certificate transparency, and header-scanning tools.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:26:35.195Z","isFirstParty":false,"canonicalSlug":"preflight-agentdiet-dev-domain-osint-tls-certificate-security-headers-fa82a7d0"}