{"uid":"cap_7L9s2HMe2T3JYLEAl1Bns","slug":"dns-a-record-lookup-for-support-subdomain-a1d85a9d","name":"DNS A Record Lookup for support Subdomain","description":"A record of support.<domain>: looks up the support host under the domain you give (A via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like support without enumerating subdomains. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/host/support/a?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_biIh1EbwJbY2N1f95Ng6o","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 A record (IPv4) for the support.<domain> subdomain via Cloudflare DNS over HTTPS and reports existence, IP records, and TTL.","exampleAgentPrompt":"Can you check if support.acme.com exists by looking up its DNS A record and tell me what IP it resolves to and what the TTL is?","exampleUseCases":[{"title":"Verify support portal existence","prompt":"Does support.stripe.com actually exist as a real host? Look up its DNS A record and tell me the IP address and TTL."},{"title":"Pre-contact infrastructure check","prompt":"Before I reach out to their support team, can you check whether support.hubspot.com is a live host by resolving its A record?"},{"title":"Onboarding domain validation","prompt":"We just onboarded a new customer with domain clientbrand.com — can you check if their support subdomain exists by looking up the A record for support.clientbrand.com?"}],"resultDescription":"Returns whether the support.<domain> A record exists, its IPv4 address(es), and the TTL value for the record as resolved via Cloudflare DoH.","failureModes":["Domain does not exist — returns no records found","support subdomain not configured — returns empty record set","Invalid or malformed domain input — may return error","Cloudflare DoH upstream timeout — service may return error or empty response"],"whenToPreferThis":"Use this endpoint when you need a fast, single-purpose check on whether a domain has a support subdomain configured with an A record, without performing broad subdomain enumeration. Ideal for pre-flight checks, onboarding validations, or enriching company records with support host availability.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:59:07.474Z","isFirstParty":false,"canonicalSlug":"dns-a-record-lookup-for-support-subdomain-a1d85a9d"}