{"uid":"cap_BGw9mQgdz0UUSw6acBsh3","slug":"domain-intel-whois-dns-mail-policy-tls-subdomains-halowerk-d19f5233","name":"Domain Intel — WHOIS, DNS, Mail Policy, TLS & Subdomains (Halowerk)","description":"Domain in, WHOIS, DNS, mail policy, TLS certificate and subdomains out. Pay per call in USDC over x402. No signup, no API key.","url":"https://dns.halowerk.com/domain/articles/ns-inwx?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"domain":{"type":"string","maxLength":253},"baseline":{"type":"object","required":["domain","observed_at","records"],"properties":{"domain":{"type":"string","maxLength":253},"records":{"type":"array","items":{"type":"string","maxLength":254},"maxItems":50},"observed_at":{"type":"string","maxLength":40}},"additionalProperties":false}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.009","displayCostAsset":"USDC","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":"$0.009/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.009","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.009","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_6FSjAAPmmsaTazmn7bzhs","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.009","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Given a domain name, returns WHOIS record, DNS records (A, AAAA, MX, NS, TXT, CAA, SOA), mail policy (SPF/DKIM/DMARC), TLS certificate details, and subdomains — paid per call via x402/USDC.","exampleAgentPrompt":"Pull up the full domain intelligence report for github.com — I need WHOIS, all DNS records, mail policy (SPF/DMARC/DKIM), TLS certificate info, and any subdomains you can find.","exampleUseCases":[{"title":"Email deliverability audit for a domain","prompt":"Check the mail policy for sendgrid.com — I need to see its SPF, DMARC, and DKIM records to verify it's properly configured for email deliverability."},{"title":"Vendor domain due diligence","prompt":"Run a full domain intelligence check on acmecorp.io — I want to see who owns it via WHOIS, what nameservers it uses, its TLS certificate, and any subdomains you can discover."},{"title":"Detect DNS changes against a baseline","prompt":"Compare the current DNS records for stripe.com against this baseline I recorded last week: NS records were ns1.stripe.com and ns2.stripe.com observed at 2024-06-01T00:00:00Z — flag anything that changed."}],"resultDescription":"A comprehensive domain intelligence bundle including: WHOIS registration data (registrant, registrar, expiry), DNS records (A, AAAA, MX, NS, TXT, CAA, SOA), mail security policies (SPF, DKIM, DMARC), TLS/SSL certificate details (issuer, validity, SANs), and a list of discovered subdomains — all for the queried domain, optionally diffed against a provided baseline snapshot.","failureModes":["Domain not found or does not exist — returns empty or error response","WHOIS data redacted/unavailable due to privacy protection (GDPR, registrar policy)","TLS certificate absent if domain has no HTTPS endpoint","Subdomain enumeration may be incomplete depending on DNS zone exposure","Rate limiting or payment failure via x402 if USDC balance is insufficient","Invalid domain format exceeding 253 characters returns validation error","Baseline comparison returns no diff if records are identical to snapshot"],"whenToPreferThis":"Choose this endpoint when you need a one-shot, comprehensive domain profile — WHOIS + DNS + mail policy + TLS + subdomains — without having to call multiple separate services or manage API keys. It is ideal for agents performing due diligence, security audits, or email infrastructure checks on arbitrary domains. The optional baseline input makes it suitable for change-detection workflows. Prefer it over raw DNS resolvers when you need the full intelligence stack in a single call, and over subscription APIs when you want frictionless pay-per-use via USDC with no account setup.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:40:40.797Z","isFirstParty":false,"canonicalSlug":"domain-intel-whois-dns-mail-policy-tls-subdomains-halowerk-d19f5233"}