{"uid":"cap_KRMF072Kem8E0sGEPJR4q","slug":"agentdiet-dev-domain-osint-tls-certificate-security-headers-recon-3351b9da","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://agentdiet.dev/v1/whois-lookup)","url":"https://agentdiet.dev/v1/whois-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_UFaXKxHQSe9DZ8UGrvTpy","protocol":"mpp","methodType":"crypto","chain":"tempo","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":"agentdiet.dev","brandSlug":"agentdiet-dev-mpp","brandBaseUrl":"https://agentdiet.dev","brandDocsUrl":null,"whatItDoes":"Performs live DNS resolution (IPv4/IPv6), TLS certificate inspection (issuer, expiry), and HTTP security header grading for a target domain.","exampleAgentPrompt":"Can you run a full domain OSINT check on stripe.com — I want to see its DNS resolution (IPv4 and IPv6), TLS certificate issuer and expiry, and its HTTP security header grade?","exampleUseCases":[{"title":"Vendor security due diligence check","prompt":"Before we integrate with this new payment API, can you check the domain security for payments.acmecorp.com — I want to see their TLS certificate details, who issued it, when it expires, and what their HTTP security grade looks like?"},{"title":"Monitoring certificate expiry for a client","prompt":"Can you check when the TLS certificate for mybusiness.com expires and who issued it? I want to make sure it's not about to lapse."},{"title":"Investigating a suspicious phishing domain","prompt":"I got a suspicious email from support@secure-bank-login.net — can you pull the DNS records, TLS certificate info, and security header grade for that domain so I can tell if it's legit or a phishing site?"}],"resultDescription":"Returns live DNS resolution results (IPv4 and IPv6 addresses), TLS certificate details (issuer, validity period, expiry date), and an HTTP security headers grade/analysis for the queried domain.","failureModes":["Domain does not exist or fails DNS resolution — likely returns an error or empty DNS fields","Domain has no HTTPS/TLS — certificate fields may be null or absent","Timeout if the target server is slow to respond","Invalid domain format input — validation error returned","Domain is reachable but returns no security headers — grade reflects absence"],"whenToPreferThis":"Choose this endpoint when you need a quick, combined snapshot of a domain's DNS posture, TLS certificate health, and HTTP security configuration in a single call. It is ideal for security due diligence, OSINT reconnaissance, certificate expiry monitoring, or evaluating third-party vendor domains — especially when you need live, real-time data rather than cached WHOIS registry records.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T07:24:01.933Z","isFirstParty":false,"canonicalSlug":"agentdiet-dev-domain-osint-tls-certificate-security-headers-recon-84565a67"}