{"uid":"cap_57-iiWkL98tyfiI1Gj6wh","slug":"domainref-domain-age-lookup-72227ad5","name":"DomainRef - Domain Age Lookup","description":"Use when mail lands in spam, before an email campaign, for vendor due diligence or to confirm a Microsoft 365 tenant: graded SPF, DKIM, DMARC, MX, MTA-STS, DNSSEC, CAA, TLS and domain age, plus BIMI and blocklist info, each with the exact fix record. Non-intrusive. $0.01 per domain.","url":"https://domainref.dev/v1/domain/age?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","queryParams"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","required":["domain"],"properties":{"domain":{"type":"string","maxLength":253,"minLength":1,"description":"Required. The domain to check, sent as ?domain=example.com."}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"grade":"pass","domain":"example.com","registration":{"age_days":11389,"registrar":{"name":"RESERVED-Internet Assigned Numbers Authority","iana_id":"376"}}}},"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_03g11Z-lKUCCpheGCOU2T","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 the registration age and registrar details for a given domain as part of email/domain security grading","exampleAgentPrompt":"Can you check how old the domain example.com is and who its registrar is — I want to know if it's been around long enough to trust emails coming from it.","exampleUseCases":[{"title":"Pre-campaign sender domain vetting","prompt":"Before I send this marketing email campaign, can you check how old our sending domain acmecorp.io is and confirm the registrar details so I know it won't get flagged as a newly registered phishing domain?"},{"title":"Vendor due diligence domain check","prompt":"We got an invoice from a company at newvendor-payments.com — can you look up how old that domain is? I want to make sure it's not a newly spun-up fraud domain before we pay anything."},{"title":"Spam investigation for received email","prompt":"I got a suspicious email from support@quickdeal-offers.net and it landed in spam — can you check how old that domain is and who registered it so I can decide if it's legitimate?"}],"resultDescription":"Returns a JSON object with a security grade, the queried domain name, and a registration object containing the domain's age in days, the registrar's name, and the registrar's IANA ID. This lets agents quickly assess domain trustworthiness based on registration history.","failureModes":["Domain not found or unregistered — empty or error response","Invalid domain format in query parameter — likely 400 error","WHOIS data unavailable for certain TLDs — incomplete age data","Payment failure via x402 — 402 response before data is returned","Rate limiting if too many requests are made in succession"],"whenToPreferThis":"Choose this endpoint when you need a quick, non-intrusive lookup of a domain's registration age and registrar as part of email security analysis, phishing detection, or vendor due diligence. It is ideal when you want a lightweight signal about domain trustworthiness without triggering active probes, and when you need exact registrar attribution. At $0.005 per call it is cost-effective for high-volume screening pipelines.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-11-01T12:32:18.060Z","isFirstParty":false,"canonicalSlug":"domainref-domain-age-lookup-72227ad5"}