{"uid":"cap_b_ZjMWb7nb1NX96PvTIfw","slug":"domain-intel-mx-retarus-check-56ebfc16","name":"Domain Intel – MX Retarus Check","description":"Requires an unauthenticated caller-owned baseline; returns real current NS/MX records, added/removed sets and tri-state target-provider transition. Current DNS comes from one bounded native recursive-resolver query; existing Dossier provides context. Resolver caching may apply; no account ownership or global migration-completion claim. Existing provider patterns are reused without new invented attribution. At most50records,domain253chars,9sbudget; DNSsubquery2s/oneattempt. Unknown provider remai","url":"https://dns.halowerk.com/domain/articles/mx-retarus?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":"object","required":["exchange","priority"],"properties":{"exchange":{"type":"string","maxLength":254},"priority":{"type":"integer","maximum":65535,"minimum":0}},"additionalProperties":false},"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_qD17aphKDs0CtASUenDp4","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":"Looks up WHOIS, DNS, mail policy (SPF/DKIM/DMARC), TLS certificate, and subdomains for a given domain, with optional MX record baseline comparison against Retarus mail infrastructure.","exampleAgentPrompt":"Pull full domain intelligence on halowerk.com — I need WHOIS, DNS records, mail policy, TLS cert details, and subdomains, and compare the MX records against this baseline: exchange=mx.retarus.net priority=10, observed 2024-01-15T00:00:00Z.","exampleUseCases":[{"title":"Email infrastructure audit for security team","prompt":"Run a full domain intel check on acmecorp.com — I need its WHOIS info, DNS records, SPF/DKIM/DMARC mail policies, TLS certificate, and a list of subdomains so I can audit their email security posture."},{"title":"Detect MX record drift from Retarus baseline","prompt":"Check domain intel for clientdomain.com and compare its current MX records against the baseline I recorded last month: exchange=mx1.retarus.net priority=10, exchange=mx2.retarus.net priority=20, observed at 2024-06-01T12:00:00Z — flag if anything has changed."},{"title":"Competitive domain recon before acquisition","prompt":"I need a full intelligence snapshot of targetcompany.io before we proceed — WHOIS ownership, all DNS records, their mail routing setup, TLS cert details, and any subdomains you can find."}],"resultDescription":"Returns aggregated domain intelligence including WHOIS registration data, DNS records, mail policy records (SPF, DKIM, DMARC), TLS/SSL certificate details, discovered subdomains, and optionally a comparison of current MX records against a provided baseline showing any deviations.","failureModes":["Domain not found or unresolvable — returns empty or error response","Invalid domain format (exceeds 253 characters or malformed) — schema validation error","WHOIS data unavailable for some TLDs — partial response","TLS certificate lookup fails if domain has no HTTPS — missing cert data","Baseline MX comparison returns no diff if baseline format is malformed","Payment failure over x402 — 402 response, call not executed"],"whenToPreferThis":"Choose this endpoint when you need a comprehensive, single-call domain intelligence snapshot covering WHOIS, DNS, mail policy, TLS, and subdomains without managing API keys or subscriptions. Especially useful when you want to compare current MX records against a known Retarus mail infrastructure baseline to detect drift. Prefer over general DNS lookup tools when you need the full multi-layer view in one pay-per-call request.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:46:21.461Z","isFirstParty":false,"canonicalSlug":"domain-intel-mx-retarus-check-56ebfc16"}