{"uid":"cap_F7bHn8WUEbpttRO56TT84","slug":"dns-a-record-lookup-for-dev-subdomain-bad7a07d","name":"DNS A Record Lookup for dev Subdomain","description":"A record of dev.<domain>: looks up the dev 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 dev without enumerating subdomains. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/host/dev/a?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_KDZl9kkFjikbMzSL45Btv","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 (IPv4) record for the dev.<domain> subdomain via Cloudflare DNS over HTTPS and returns whether it exists, its IP addresses, and TTL.","exampleAgentPrompt":"Can you check whether example.com has a dev subdomain set up — does dev.example.com resolve to an IP address, and if so what is it and what's the TTL?","exampleUseCases":[{"title":"Pre-deployment environment check","prompt":"Before I push to staging, can you confirm that dev.acmecorp.com actually resolves to an IP? I want to make sure the dev subdomain is live in DNS."},{"title":"Competitor infrastructure reconnaissance","prompt":"I want to know if stripe.com has a dev subdomain set up — does dev.stripe.com have an A record, and if so, what IP does it point to?"},{"title":"DNS misconfiguration investigation","prompt":"Our dev.mycompany.com subdomain seems unreachable — can you check if it has a valid A record in DNS and what TTL is set?"}],"resultDescription":"Returns whether the dev.<domain> subdomain exists in DNS, its A records (IPv4 addresses), the TTL value, and the DNS response code (e.g. NOERROR or NXDOMAIN).","failureModes":["Domain does not exist — returns NXDOMAIN with no records","dev subdomain not configured — returns NXDOMAIN for that specific host","Malformed domain input — request may fail or return an error","Cloudflare DoH upstream timeout — may return a timeout or server error","Rate limiting if called excessively — may return HTTP 429"],"whenToPreferThis":"Use this endpoint when you need a quick, targeted existence check for the dev subdomain of a specific domain without enumerating all subdomains. Prefer it over full DNS enumeration tools when you only care about whether a dev host exists and its IPv4 address. Useful for infrastructure audits, competitor research, or pre-deployment checks at low cost ($0.01 per lookup).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T18:53:57.487Z","isFirstParty":false,"canonicalSlug":"dns-a-record-lookup-for-dev-subdomain-bad7a07d"}