{"uid":"cap_7EXvapiQ8PKomMWbmx-_r","slug":"dns-a-record-lookup-for-internal-domain-subdomain-2541ffcc","name":"DNS A Record Lookup for internal.<domain> Subdomain","description":"A record of internal.<domain>: looks up the internal 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 internal without enumerating subdomains. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/host/internal/a?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_2ZSA_7bnwhJ0I6q2FO7lR","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 'internal' subdomain under a given domain via Cloudflare DNS over HTTPS, returning whether the host exists, its IP records, and TTL.","exampleAgentPrompt":"Can you check if the 'internal' subdomain of acme.com exists in DNS and tell me what IP it resolves to and its TTL?","exampleUseCases":[{"title":"Pre-deployment internal host check","prompt":"Before we launch, can you verify that internal.mycompany.com has a valid A record in DNS and tell me the IP and TTL it's returning?"},{"title":"Security audit for exposed internal hosts","prompt":"As part of a quick security review, check whether internal.targetdomain.com resolves publicly — does it have an A record and if so what IP does it point to?"},{"title":"Infrastructure existence verification","prompt":"I'm setting up a monitoring config — can you confirm whether internal.rally.ca actually exists in DNS and what its current A record looks like?"}],"resultDescription":"Returns whether the 'internal.<domain>' hostname exists in DNS, its A record IP address(es), the TTL value, and the DNS response code — all resolved via Cloudflare DNS over HTTPS.","failureModes":["Domain not found / NXDOMAIN — internal subdomain does not exist under the given domain","Invalid domain input — malformed domain name rejected","Cloudflare DoH upstream timeout or error — DNS resolution fails","Payment failure — x402 micropayment not completed, request not processed"],"whenToPreferThis":"Use this endpoint when you need a quick, single-shot existence and resolution check specifically for the 'internal' subdomain of a given domain, without needing to enumerate all subdomains. Prefer it over general DNS A record endpoints when the target host is known to be 'internal' and you want a pre-scoped, cheap lookup via Cloudflare DoH.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:59:31.272Z","isFirstParty":false,"canonicalSlug":"dns-a-record-lookup-for-internal-domain-subdomain-2541ffcc"}