{"uid":"cap_ff2uIEEGxIugxtPyMTdtl","slug":"domaindna-email-security-tech-stack-lookup-5a705e3c","name":"DomainDNA Email Security & Tech Stack Lookup","description":"Any website's tech stack and email security, one call. Tech stack, email security and domain age API + MCP: one call per domain, evidence included Try it free in one click, no sign-up.","url":"https://domaindna-api.cybermax-tools.workers.dev/x402/api/email-security?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{"domain":{"type":"string","description":"A domain, URL or email, or up to 5 separated by commas. Subdomains are kept for the website and DNS checks; DMARC and RDAP use the registrable domain."}}}}},"output":{"type":"object","properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.005","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":"$0.005/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.005","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_3SD7Kpy1qQQwUVz287Dku","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.005","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns email security posture (SPF, DKIM, DMARC), technology stack, and domain age for any given domain in a single API call.","exampleAgentPrompt":"Can you check the email security setup and tech stack for stripe.com — I want to know if they have DMARC, SPF, and DKIM configured, plus how old the domain is?","exampleUseCases":[{"title":"Vendor email security audit","prompt":"Before we onboard this new vendor, can you check the email security posture of acmecorp.com — I need to know if they have DMARC, SPF, and DKIM set up properly so we can trust emails coming from them?"},{"title":"Phishing domain investigation","prompt":"We got a suspicious email from support@paypa1.com — can you look up what tech stack and email security records are on paypa1.com to help me figure out if it's a spoofed phishing domain?"},{"title":"Competitor tech stack discovery","prompt":"Can you pull up the full tech stack for hubspot.com in one call — I want to know what CMS, analytics, and email infrastructure they're running, plus how long the domain has been around?"}],"resultDescription":"A JSON object containing the domain's email security records (SPF, DKIM, DMARC policy and alignment details), identified technology stack components (CMS, analytics, hosting, etc.), domain age from RDAP registration data, and supporting DNS evidence used to derive each finding.","failureModes":["Domain does not exist or is unresolvable — returns empty or error record","Domain has no email security records (missing SPF/DMARC) — fields returned as null or absent","Rate limiting or quota exceeded for bulk domain inputs (max 5 per call)","Subdomain provided where registrable domain is needed for DMARC/RDAP — API handles automatically but results may differ","Network timeout if target domain DNS is slow to respond"],"whenToPreferThis":"Choose this endpoint when you need email security posture AND tech stack data for a domain in a single round-trip. It is ideal for security audits, vendor due diligence, phishing investigations, and competitive research where combining DNS/DMARC intelligence with technology fingerprinting saves multiple separate lookups. Supports up to 5 domains per call, making it efficient for small batch checks.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T18:31:56.873Z","isFirstParty":false,"canonicalSlug":"domaindna-email-security-tech-stack-lookup-5a705e3c"}