{"uid":"cap_CSTmwiDfXYaglj-WeoktH","slug":"hn-pulse-agentdiet-dev-domain-osint-tls-certificate-security-headers-605d40f9","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://hn-pulse.agentdiet.dev/v1/asn-lookup)","url":"https://hn-pulse.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_AL2gMtHMPADD5hExdRkvj","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"hn-pulse.agentdiet.dev","brandSlug":"hn-pulse-agentdiet-dev-mpp","brandBaseUrl":"https://hn-pulse.agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Performs live reconnaissance on a domain including IPv4/IPv6 DNS resolution, TLS certificate issuer and expiry, and HTTP security header grading.","exampleAgentPrompt":"Can you do a full OSINT recon on anthropic.com — I want to see its DNS resolution (IPv4 and IPv6), TLS certificate issuer and expiry date, and how it scores on HTTP security headers?","exampleUseCases":[{"title":"Vendor security due diligence check","prompt":"Before we integrate with this third-party vendor, can you pull up the TLS certificate details, DNS info, and HTTP security header grade for their domain api.vendorcorp.com?"},{"title":"SSL certificate expiry monitoring","prompt":"Can you check when the TLS certificate for mybusiness.com expires and who issued it? I want to make sure we don't get caught off guard."},{"title":"Competitor security posture analysis","prompt":"I want to compare the security posture of stripe.com — can you look up its DNS resolution, TLS certificate issuer and expiry, and its HTTP security headers grade?"}],"resultDescription":"Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer, expiry date), and an HTTP security header grade or breakdown for the specified domain.","failureModes":["Domain does not exist or fails DNS resolution — returns empty or error response","Domain is unreachable or times out during live probe — may return partial data or error","Invalid domain format provided — validation error returned","TLS certificate absent or unreachable HTTPS endpoint — certificate fields may be null","Rate limiting or payment failure — HTTP 402 or 429 response"],"whenToPreferThis":"Choose this endpoint when you need live, real-time OSINT data on a domain's DNS resolution, TLS certificate status, and HTTP security posture in a single call. Prefer it over manual lookup tools or passive WHOIS-only services when you need current certificate expiry, issuer chain, and active security header grades together.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:21:44.018Z","isFirstParty":false,"canonicalSlug":"hn-pulse-agentdiet-dev-domain-osint-tls-certificate-security-headers-1eaae0e4"}