{"uid":"cap_1jQablRYtF9zXeUTIEp9x","slug":"dns-soa-record-lookup-via-nextdns-doh-b2e1a30f","name":"DNS SOA Record Lookup via NextDNS (DoH)","description":"SOA records for a domain as answered by NextDNS (DNS over HTTPS): the records, TTL, response code (NOERROR/NXDOMAIN/SERVFAIL), whether the resolver validated DNSSEC, and the resolver's answer time. Compare resolvers to spot propagation lag, filtering or split-horizon answers. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/soa/via/nextdns?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_uVor4UeEtRgT0a-C7ebR-","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":"Retrieves SOA (Start of Authority) DNS records for a domain using NextDNS as the DNS-over-HTTPS resolver, returning records, TTL, response code, DNSSEC validation status, and answer time.","exampleAgentPrompt":"What SOA record does NextDNS return for example.com — give me the record details, TTL, response code, whether DNSSEC was validated, and how fast NextDNS answered?","exampleUseCases":[{"title":"Detecting DNS propagation lag across resolvers","prompt":"I just updated the SOA serial for acme.io — can you check what SOA record NextDNS is currently serving for it and tell me if DNSSEC validated, so I can compare it against Cloudflare and Google to see if propagation has completed?"},{"title":"Auditing split-horizon or filtered DNS responses","prompt":"Can you pull the SOA record for internal.mycompany.com from NextDNS and tell me the response code and DNSSEC status? I want to see if NextDNS is returning a filtered or different answer compared to other resolvers."},{"title":"Monitoring DNS zone serial for unexpected changes","prompt":"Check the SOA record for mydomain.net via NextDNS and tell me the zone serial number and TTL — I want to make sure the primary nameserver hasn't changed unexpectedly."}],"resultDescription":"Returns the SOA record fields (primary nameserver, responsible mailbox, serial, refresh, retry, expire, minimum TTL), the DNS TTL, the response code (NOERROR, NXDOMAIN, or SERVFAIL), whether NextDNS validated DNSSEC for the response, and the resolver's answer time in milliseconds.","failureModes":["NXDOMAIN if the domain does not exist or has no SOA record","SERVFAIL if NextDNS cannot resolve the domain","Empty records array if the domain has no SOA entry","Missing domain parameter returns an error","NextDNS filtering may suppress or alter responses for certain domains"],"whenToPreferThis":"Choose this endpoint when you specifically want to see how NextDNS resolves SOA records — particularly useful for comparing resolver behavior, detecting propagation lag, spotting split-horizon DNS, or auditing whether NextDNS's filtering affects zone authority responses. Use sibling endpoints for other record types or other resolvers.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T18:30:11.425Z","isFirstParty":false,"canonicalSlug":"dns-soa-record-lookup-via-nextdns-doh-b2e1a30f"}