{"uid":"cap_tHPQTuCc8AULcztJ-Ck4N","slug":"lookproof-ns-provider-lookup-c3a80128","name":"Lookproof NS Provider Lookup","description":"Check SPF, DMARC, DKIM, MTA-STS, DNSSEC and more, with results that explain what was found and why. Free browser checks and a pay-per-request API with x402.","url":"https://api.lookproof.dev/v1/dns/ns-provider?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","HEAD","DELETE"],"type":"string"},"queryParams":{"type":"object","title":"DomainInput","required":["domain"],"properties":{"domain":{"type":"string","title":"Domain","examples":["example.com"],"maxLength":1024,"minLength":1}},"additionalProperties":false}},"additionalProperties":false}}},"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_E4YLdkHTqPx4T5hHlrAGV","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":"Identifies which DNS hosting provider (Cloudflare, Route 53, Azure DNS, Google Cloud DNS, etc.) is managing a domain's name servers by matching its NS records against a versioned pattern list.","exampleAgentPrompt":"Which DNS provider is hosting the name servers for stripe.com — is it Cloudflare, Route 53, or something else?","exampleUseCases":[{"title":"Pre-migration DNS provider check","prompt":"Before I move the DNS records for acme.com to a new registrar, can you tell me which DNS provider is currently hosting its name servers?"},{"title":"Multi-tenant SaaS DNS audit","prompt":"I need to know which DNS provider each of our client domains is using — start by checking ns-provider for clientportal.io so I know if it's on Cloudflare or somewhere else."},{"title":"Incident triage for DNS outage","prompt":"We're seeing DNS resolution failures for shopwidget.net — can you quickly check which provider is hosting its name servers so I know who to contact?"}],"resultDescription":"A JSON response identifying the DNS hosting provider matched against a fixed, versioned list of name server patterns. Returns the provider name (e.g. Cloudflare, Route 53, Azure DNS, Google Cloud DNS, GoDaddy, Namecheap, NS1, Hetzner, OVHcloud) or marks the provider as unknown if the NS records don't match any known pattern. Includes the detected NS record values.","failureModes":["Domain does not exist or has no NS records — returns an error or empty result","Name server pattern not in the versioned list — provider returned as unknown","Invalid or malformed domain input — returns a validation error","Network timeout reaching upstream DNS resolvers — may return error or partial data","Very new or obscure DNS providers not yet in the pattern list — returned as unknown"],"whenToPreferThis":"Use this endpoint when an agent needs to determine which DNS provider hosts a domain's zone before executing DNS changes, migrations, or provider-specific automation. It is the right choice over raw NS record lookups because it interprets the NS hostnames against a curated, versioned provider pattern list, saving the agent from maintaining its own mapping logic. Prefer it over general WHOIS or RDAP lookups when the specific question is about DNS hosting (not registrar or ownership).","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-31T18:40:20.818Z","isFirstParty":false,"canonicalSlug":"lookproof-ns-provider-lookup-c3a80128"}