{"uid":"cap_pAMa5MIjmoKlA0I2ZD5P7","slug":"dns-a-record-lookup-for-ftp-subdomain-a04a7612","name":"DNS A Record Lookup for FTP Subdomain","description":"A record of ftp.<domain>: looks up the ftp 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 ftp without enumerating subdomains. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/host/ftp/a?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_-gBy3v-pCJrE0x2M7XMcd","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 of the ftp.<domain> subdomain via Cloudflare DoH and reports whether it exists, its IP records, and TTL.","exampleAgentPrompt":"Check if ftp.example.com exists by looking up its DNS A record — I want to know if the FTP host is configured for that domain and what IP it points to.","exampleUseCases":[{"title":"Verify FTP server exists before connecting","prompt":"Does ftp.mycompany.com actually exist? Look up its DNS A record and tell me the IP address and TTL so I know if there's a real FTP host configured there."},{"title":"Domain infrastructure audit","prompt":"I'm auditing the infrastructure for acme.org — can you check if they have an FTP subdomain set up by looking up the A record for ftp.acme.org?"},{"title":"Pre-deployment FTP host validation","prompt":"Before I configure my FTP client, can you check whether ftp.uploadserver.net resolves to anything? I need to know if the DNS A record exists and what it says."}],"resultDescription":"Returns whether the ftp.<domain> A record exists, the resolved IP address(es), the TTL value, and the DNS response code (e.g. NOERROR or NXDOMAIN), as answered by Cloudflare DNS over HTTPS.","failureModes":["Domain does not exist — returns NXDOMAIN with no records","FTP subdomain not configured — exists flag false, empty records","Invalid domain format — request may fail or return error","Cloudflare DoH unavailable — upstream resolution failure","Network timeout reaching DoH resolver"],"whenToPreferThis":"Use this endpoint when you need a quick, targeted check on whether an ftp.<domain> host is configured in DNS without enumerating all subdomains. Prefer it over general DNS resolvers when you want a structured, paid API response with clear existence signals and TTL data for specifically the FTP common subdomain pattern.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T18:55:00.678Z","isFirstParty":false,"canonicalSlug":"dns-a-record-lookup-for-ftp-subdomain-a04a7612"}