{"uid":"cap_rvXtzoztKKyelLvo__Dac","slug":"dns-aaaa-sftp-subdomain-cedb947b","name":"dns-aaaa-sftp-subdomain","description":"AAAA record of sftp.<domain>: looks up the sftp host under the domain you give (AAAA via Cloudflare DoH) and reports whether it exists, its records and TTL. Quick existence check for common hosts like sftp without enumerating subdomains. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/host/sftp/aaaa?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_hVisad-KSjcJOkinJPzMb","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 AAAA (IPv6) DNS record for the sftp subdomain of a given domain via Cloudflare DNS-over-HTTPS and reports whether it exists, its records, and TTL.","exampleAgentPrompt":"Can you check if sftp.example.com has an IPv6 address configured — look up the AAAA record for the sftp subdomain of example.com and tell me if it exists and what the TTL is?","exampleUseCases":[{"title":"Verify SFTP server IPv6 reachability","prompt":"I need to know if sftp.acmecorp.com is set up with an IPv6 address — can you look up the AAAA record for the sftp subdomain of acmecorp.com?"},{"title":"Pre-migration DNS audit for SFTP","prompt":"Before we migrate our file transfer system, can you check whether sftp.oldcompany.com has a valid AAAA DNS record and what its TTL is?"},{"title":"Confirm SFTP subdomain existence for a client domain","prompt":"Can you tell me if our client's SFTP host exists — specifically whether sftp.clientdomain.net has an IPv6 DNS record configured?"}],"resultDescription":"Returns whether the AAAA record for sftp.<domain> exists, the IPv6 address records (if present), the TTL value, and the DNS response code (e.g. NOERROR or NXDOMAIN) as resolved via Cloudflare DNS over HTTPS.","failureModes":["Domain does not exist — NXDOMAIN response with no records","sftp subdomain not configured — returns empty record set","Invalid domain input — malformed domain may cause lookup error","Cloudflare DoH unreachable — upstream timeout or error","Domain has only A (IPv4) record, no AAAA — returns empty AAAA result"],"whenToPreferThis":"Use this endpoint when you specifically need to check whether a domain has an IPv6-accessible SFTP host (sftp.<domain>) without needing to enumerate all subdomains. Ideal for quick existence checks during DNS audits, pre-connection validation, or infrastructure discovery workflows where IPv6 support for file transfer services matters.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T18:54:04.017Z","isFirstParty":false,"canonicalSlug":"dns-aaaa-sftp-subdomain-cedb947b"}