{"uid":"cap_w01hK4wVzzz0F6gLEW7tu","slug":"domain-nameserver-health-check-59fd7eeb","name":"Domain Nameserver Health Check","description":"Nameserver health of a domain: count, provider diversity, whether each nameserver resolves, and the SOA serial.","url":"https://domain-dns.x402tookit.com/ns-health?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","required":["domain"],"properties":{"domain":{"type":"string","description":"Domain name, e.g. example.com"}}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object","properties":{"soa":{"type":["null","object"],"properties":{"retry":{"type":["null","number"]},"expire":{"type":["null","number"]},"serial":{"type":["null","number"]},"contact":{"type":["null","string"]},"refresh":{"type":["null","number"]},"primaryNs":{"type":["null","string"]},"minimumTtl":{"type":["null","number"]}}},"asOf":{"type":["null","string"]},"domain":{"type":["null","string"]},"source":{"type":["null","string"]},"reasons":{"type":["array","null"],"items":{"type":"string"}},"summary":{"type":["null","string"]},"verdict":{"type":["null","string"]},"degraded":{"type":["boolean","null"]},"providers":{"type":["array","null"],"items":{"type":"string"}},"sourceUrl":{"type":["null","string"]},"disclaimer":{"type":["null","string"]},"notChecked":{"type":["array","null"],"items":{"type":"string"}},"nameservers":{"type":["array","null"],"items":{"type":"object","properties":{"provider":{"type":["null","string"]},"resolves":{"type":["boolean","null"]},"nameserver":{"type":["null","string"]}}}}}}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.03","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":"$0.03/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.03","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_bhDhK7qUqz-POJS_HiMLt","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.03","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns nameserver count, provider diversity, individual resolution status, and SOA serial for a given domain.","exampleAgentPrompt":"Can you check the nameserver health of cloudflare.com — I want to know how many nameservers it has, whether they all resolve, which DNS providers are involved, and what the SOA serial looks like?","exampleUseCases":[{"title":"Pre-launch DNS infrastructure audit","prompt":"Before we go live, can you check the nameserver health of mystartupdomain.com — I want to confirm all nameservers resolve, see how many we have, and check if we're relying on just one DNS provider?"},{"title":"Diagnosing intermittent DNS outages","prompt":"We're seeing intermittent DNS failures for acmecorp.com — can you check the nameserver health, see which ones are resolving and which aren't, and give me the SOA serial so I can compare with our registrar?"},{"title":"Monitoring competitor DNS redundancy","prompt":"Can you pull the nameserver health report for competitor.com? I want to see how many nameservers they have, how many different DNS providers, and whether there are any degraded nameservers."}],"resultDescription":"Returns a structured report including the domain name, list of nameservers with per-nameserver resolution status and detected provider, the set of distinct DNS providers (provider diversity), an overall health verdict, a degraded flag, reasons for any issues, and the SOA record with fields including serial, primary NS, contact, refresh, retry, expire, and minimum TTL. Also includes a summary string, timestamp, and optional disclaimer.","failureModes":["Domain does not exist — nameservers list may be empty and verdict reflects non-existence","DNS resolution timeout — some nameservers marked as not resolving due to transient network issues","Invalid domain input — malformed domain string causes error response","All nameservers fail to resolve — degraded flag set to true with reasons listed","SOA record unavailable — soa field returned as null"],"whenToPreferThis":"Choose this endpoint when you need a focused, structured health check on a domain's nameserver layer specifically — covering resolution, provider diversity, and SOA data — rather than a full multi-record DNS dump. It is ideal for infrastructure audits, DNS redundancy checks, outage diagnosis, and monitoring workflows where nameserver reliability is the primary concern.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-26T06:40:06.475Z","isFirstParty":false,"canonicalSlug":"domain-nameserver-health-check-59fd7eeb"}