{"uid":"cap_QGlh7uGkEJD462R4kZr7S","slug":"hn-pulse-agentdiet-dev-domain-osint-tls-certificate-security-headers-658336b1","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/subdomain-scan)","url":"https://hn-pulse.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_IjjpTe-CylDCycuKXbXbL","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 DNS resolution (IPv4/IPv6), TLS certificate inspection (issuer/expiry), and HTTP security header grading for a given domain.","exampleAgentPrompt":"Can you run a full DNS, TLS certificate, and HTTP security header scan on stripe.com — I want to see the IPv4/IPv6 addresses, who issued the cert, when it expires, and what security grade the headers get?","exampleUseCases":[{"title":"Vendor security due diligence check","prompt":"Before we integrate with this new payment vendor, can you check payments.acmecorp.com for its TLS cert issuer and expiry, DNS resolution, and HTTP security header grade so I can assess their security posture?"},{"title":"Monitor competitor certificate expiry","prompt":"I want to know when openai.com's TLS certificate expires and who issued it — can you pull the full cert details along with their DNS records?"},{"title":"Pre-launch domain security audit","prompt":"We're about to go live with app.mysaas.io — can you scan it for IPv4/IPv6 DNS resolution, check the TLS certificate is valid and from a trusted issuer, and grade our HTTP security headers?"}],"resultDescription":"Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate metadata (issuer, expiry date, validity status), and an HTTP security header assessment/grade for the target domain.","failureModes":["Domain does not exist or fails DNS resolution — returns error or empty DNS fields","Domain has no TLS certificate (HTTP-only) — TLS fields absent or error","Request times out if target domain is slow to respond","Invalid domain format provided — validation error returned","Domain is reachable but blocks automated probes — partial or no security header data"],"whenToPreferThis":"Choose this endpoint when you need live, multi-signal domain intelligence in a single call — combining DNS resolution, TLS certificate inspection, and HTTP security header grading. It is ideal for security researchers, DevSecOps pipelines, vendor due-diligence workflows, or monitoring certificate expiry without piecing together separate DNS lookup, SSL checker, and header scanner tools.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:25:59.494Z","isFirstParty":false,"canonicalSlug":"hn-pulse-agentdiet-dev-domain-osint-tls-certificate-security-headers-1eaae0e4"}