{"uid":"cap_zkZbF8e5uUc5GZj-i2Hb4","slug":"dkim-key1-selector-lookup-2cc85893","name":"DKIM Key1 Selector Lookup","description":"DKIM public key for selector \"key1\" of a domain: looks up key1._domainkey.<domain> (TXT, Cloudflare DoH) and parses v=, k=, key type, public-key length, testing flag and whether the key is revoked (empty p=). Confirms that mail signed with the key1 selector will verify. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/dkim/key1?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_ONJ3Z7po1N3vedegGmNXA","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":"Looks up and parses the DKIM public key for the 'key1' selector of a given domain, confirming its validity and mail-signing capability.","exampleAgentPrompt":"Can you check the DKIM key1 selector for example.com — I want to know if the public key is valid, what key type and length it uses, and whether it's revoked or in testing mode?","exampleUseCases":[{"title":"Email deliverability audit","prompt":"I'm troubleshooting email delivery issues for acme.com — can you look up the DKIM key1 selector and tell me if the public key is properly configured, not revoked, and what type and bit length it is?"},{"title":"Security review of DKIM key strength","prompt":"Can you check the DKIM key1 selector for newsletter.bigcorp.com and tell me the key length? I want to make sure they're not still using a weak 512-bit RSA key."},{"title":"Onboarding domain email auth check","prompt":"We just onboarded startup.io as a new customer — can you verify their DKIM key1 selector is active and not flagged as testing or revoked so we know their outbound mail will pass DKIM checks?"}],"resultDescription":"Returns parsed details from the key1._domainkey.<domain> DNS TXT record, including the DKIM version tag (v=), key type (k=, e.g. rsa or ed25519), public key bit length, whether the testing flag is set, and whether the key is revoked (empty p= field). Also confirms whether mail signed with the key1 selector will successfully verify.","failureModes":["Domain does not exist — DNS NXDOMAIN response, no record returned","key1._domainkey.<domain> TXT record not found — selector not configured","Malformed DKIM TXT record — parsing may fail or return partial data","Revoked key detected (empty p=) — reported as revoked, mail will not verify","Network or DoH resolver error — upstream Cloudflare DoH unavailable","Payment failure — x402 payment not processed, request rejected"],"whenToPreferThis":"Use this endpoint when you specifically need to inspect the 'key1' DKIM selector for a domain and want structured, parsed output (key type, length, revocation, testing status) rather than a raw DNS TXT record. Prefer this over generic DNS lookup tools when you need DKIM-specific field parsing and a clear pass/fail signal for whether mail signed with key1 will verify.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:59:41.261Z","isFirstParty":false,"canonicalSlug":"dkim-key1-selector-lookup-2cc85893"}