{"uid":"cap_rdaSz0Yu08Nc-CXh95iHQ","slug":"dns-a-record-lookup-for-sftp-subdomain-69a16351","name":"DNS A Record Lookup for sftp Subdomain","description":"A record of sftp.<domain>: looks up the sftp 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 sftp without enumerating subdomains. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/host/sftp/a?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_NIHKFkR-AjCk_sy_gK8at","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 sftp.<domain> via Cloudflare DNS over HTTPS and reports whether the host exists, its IP records, and TTL.","exampleAgentPrompt":"Can you check if sftp.acmecorp.com exists and what IP address it resolves to — just look up its DNS A record using Cloudflare DoH?","exampleUseCases":[{"title":"Verify SFTP server before connecting","prompt":"Before I try to connect, can you check if sftp.partnercompany.com actually exists in DNS and what IP it points to?"},{"title":"Audit domain infrastructure presence","prompt":"I'm auditing our domains — can you check whether sftp.mybrand.io has a DNS A record configured, and if so, what its TTL and IP are?"},{"title":"Detect SFTP exposure for security review","prompt":"For the security review, can you check if sftp.targetdomain.com resolves to an IP address so I know if they're running an exposed SFTP host?"}],"resultDescription":"Returns whether sftp.<domain> has a DNS A record, the resolved IP address(es), the TTL value, and the DNS response code indicating existence or non-existence of the host.","failureModes":["Domain does not exist — NXDOMAIN response with no records returned","sftp subdomain not configured — empty records with NOERROR or NXDOMAIN","Invalid domain format — malformed input may result in an error","Cloudflare DoH unreachable — upstream resolver timeout or failure","Payment not fulfilled — x402 payment required before lookup proceeds"],"whenToPreferThis":"Use this endpoint when you need a quick, single-shot existence check for the sftp subdomain of a given domain without enumerating all subdomains. Prefer it over general DNS tools when you specifically want to verify SFTP host presence via Cloudflare DoH with a simple pay-per-use model.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:48:08.774Z","isFirstParty":false,"canonicalSlug":"dns-a-record-lookup-for-sftp-subdomain-69a16351"}