{"uid":"cap__NT0qwqc5dYt4VCy0LnGR","slug":"dns-srv-via-dnssb-a082fdb3","name":"dns-srv-via-dnssb","description":"SRV records for a domain as answered by DNS.SB (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. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/srv/via/dnssb?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_g6RhsW3A-KBJtvegyoH_t","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":"Fetches SRV DNS records for a domain using DNS.SB's DNS-over-HTTPS resolver, returning the records, TTL, response code, DNSSEC validation status, and resolver answer time.","exampleAgentPrompt":"What SRV records does DNS.SB return for _sip._tcp.example.com — include the TTL, response code, whether DNSSEC was validated, and how fast the resolver answered?","exampleUseCases":[{"title":"Debug SIP service discovery failure","prompt":"Can you look up the SRV records for _sip._tcp.myvoipcompany.com using DNS.SB and tell me what records come back, the TTL, and whether DNSSEC validated correctly?"},{"title":"Compare resolver propagation lag","prompt":"I want to check SRV records for _xmpp-server._tcp.jabber.org via DNS.SB — what's the response code, the answer time, and the records returned? I'm comparing this against another resolver to spot propagation lag."},{"title":"Spot filtering on SRV records","prompt":"Check if DNS.SB is filtering or returning a real answer for SRV records on _matrix._tcp.matrix.org — I need the response code, actual records if any, and DNSSEC validation status."}],"resultDescription":"Returns the SRV resource records for the queried domain, including priority, weight, port, and target fields for each record, the TTL, the DNS response code (NOERROR, NXDOMAIN, or SERVFAIL), whether the DNS.SB resolver validated DNSSEC, and the resolver's answer latency in milliseconds.","failureModes":["NXDOMAIN response when the domain does not exist or has no SRV records","SERVFAIL response if the upstream authoritative server is unreachable or misconfigured","DNSSEC validation failure indicated in the response flags","Network timeout or connection error reaching the DNS.SB DoH endpoint","Empty records array when the domain exists but has no SRV entries"],"whenToPreferThis":"Use this endpoint when you specifically want SRV record data as resolved by DNS.SB's DNS-over-HTTPS infrastructure — especially when comparing resolver behavior, checking for split-horizon DNS, diagnosing propagation lag, or verifying DNSSEC validation status. Prefer it over generic DNS tools when you need DNS.SB's perspective specifically alongside answer timing metadata.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-21T12:46:50.321Z","isFirstParty":false,"canonicalSlug":"dns-srv-via-dnssb-a082fdb3"}