{"uid":"cap_0DFr9BYGI9TmJ7sr5KfgT","slug":"dns-cname-lookup-for-www-subdomain-cloudflare-doh-a3e94414","name":"DNS CNAME Lookup for www Subdomain (Cloudflare DoH)","description":"CNAME record of www.<domain>: looks up the www host under the domain you give (CNAME via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like www without enumerating subdomains. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/host/www/cname?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","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":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_oEJ9QsWehooFfWQoLJ2lI","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Looks up the CNAME record for the www subdomain of a given domain via Cloudflare DNS over HTTPS and returns whether it exists, its records, and TTL.","exampleAgentPrompt":"Can you check if www.acme.com has a CNAME record set up — I want to know what it points to and whether it actually exists?","exampleUseCases":[{"title":"Verify CDN alias for www host","prompt":"Does www.shopify.com have a CNAME record, and if so, what does it point to? I want to confirm they're using a CDN alias for their www subdomain."},{"title":"Check www subdomain before domain migration","prompt":"Before I migrate my site, can you check if www.oldcompany.com has a CNAME record configured and what its TTL is?"},{"title":"Audit competitor web infrastructure","prompt":"I'm researching how competitors set up their web presence — can you look up the CNAME record for www.stripe.com and tell me if it exists and where it points?"}],"resultDescription":"Returns whether the www CNAME record exists for the given domain, the actual CNAME record value(s), the TTL in seconds, and the DNS response code (e.g. NOERROR or NXDOMAIN), sourced from Cloudflare's DNS over HTTPS resolver.","failureModes":["Domain does not exist — returns NXDOMAIN response code with no records","www subdomain has no CNAME record (may have A/AAAA instead) — returns empty record set","Malformed domain input — may cause query failure or unexpected results","Cloudflare DoH resolver is temporarily unavailable — request timeout or error","Rate limiting or payment failure for the $0.01 per-call fee"],"whenToPreferThis":"Use this endpoint when you specifically need to check the CNAME record for the www subdomain of a domain without enumerating other subdomains. It is ideal for quick, targeted existence checks — e.g. verifying CDN configuration, confirming www aliasing, or pre-migration DNS audits. Prefer this over full subdomain enumeration tools when you only care about the www host and want a fast, single-record lookup via Cloudflare's trusted DoH resolver.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T18:54:30.046Z","isFirstParty":false,"canonicalSlug":"dns-cname-lookup-for-www-subdomain-cloudflare-doh-a3e94414"}