{"uid":"cap_PWUorQztxUkt_7qFDZtGA","slug":"dns-svcb-lookup-via-dns-sb-doh-b722e5ff","name":"DNS SVCB Lookup via DNS.SB (DoH)","description":"SVCB 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. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/svcb/via/dnssb?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_QVWO6wabUqtRM41U5HL9F","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 SVCB DNS records for a domain using DNS.SB as the resolver over DNS-over-HTTPS, returning records, TTL, response code, DNSSEC validation status, and answer time.","exampleAgentPrompt":"Can you look up the SVCB records for example.com using the DNS.SB resolver and tell me the TTL, response code, whether DNSSEC was validated, and how long DNS.SB took to answer?","exampleUseCases":[{"title":"Detecting DNS propagation lag","prompt":"I just updated the SVCB record for myapp.io — can you check what DNS.SB is currently returning for it, including the TTL and response code, so I can see if the change has propagated yet?"},{"title":"Comparing resolver answers for split-horizon","prompt":"Can you query the SVCB records for api.example.com via DNS.SB and tell me what records it returns along with the response code? I want to compare it against another resolver to spot any split-horizon differences."},{"title":"Verifying DNSSEC validation for SVCB","prompt":"Check whether DNS.SB validates DNSSEC when resolving the SVCB records for secure.mybank.com, and tell me the records it returns plus the answer time."}],"resultDescription":"Returns the SVCB DNS records for the queried domain as resolved by DNS.SB over HTTPS, including the record data, TTL, response code (NOERROR, NXDOMAIN, or SERVFAIL), a flag indicating whether the resolver validated DNSSEC, and the resolver's answer time in milliseconds.","failureModes":["NXDOMAIN returned if the domain does not exist or has no SVCB records","SERVFAIL returned if DNS.SB encounters an error resolving the domain","No DNSSEC validation flag if the domain is not DNSSEC-signed","Network timeout if DNS.SB is unreachable","Missing or empty records array for domains with no SVCB entries"],"whenToPreferThis":"Use this endpoint when you specifically need SVCB record data resolved by DNS.SB (a privacy-focused public resolver) over DNS-over-HTTPS, particularly when comparing resolver behavior, checking propagation lag, or verifying DNSSEC validation status. Choose this over generic DNS lookup tools when DNS.SB's perspective is specifically needed.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-22T19:01:37.960Z","isFirstParty":false,"canonicalSlug":"dns-svcb-lookup-via-dns-sb-doh-b722e5ff"}