{"uid":"cap_A8U2CMBd5BJ7ClMU2OQZe","slug":"dkim-selector-sel1-lookup-c007a9a9","name":"DKIM Selector sel1 Lookup","description":"DKIM public key for selector \"sel1\" of a domain: looks up sel1._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 sel1 selector will verify. $0.01 per lookup.","url":"https://dns.intel.rallylive.ca/dns/dkim/sel1?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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_tpxjyVyf07TzEltsTgFQM","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 'sel1' selector of a given domain, returning key type, length, testing flag, and revocation status.","exampleAgentPrompt":"Can you check the DKIM sel1 selector for example.com and tell me if the key is valid, what type and length it is, and whether it's been revoked?","exampleUseCases":[{"title":"Pre-send email deliverability audit","prompt":"Before I start sending campaigns through this new sending domain, can you check if the sel1 DKIM selector is properly configured for mybrand.com — I need to know the key type, its length, and whether it's revoked or still in test mode."},{"title":"Post-migration DKIM validation","prompt":"We just migrated our email infrastructure and I think sel1 is the active DKIM selector — can you look up the DKIM sel1 key for ourcompany.io and confirm that mail signed with it will actually verify?"},{"title":"Security audit of DKIM key strength","prompt":"I'm auditing the email security posture for clientdomain.net — can you pull the sel1 DKIM public key and tell me what the key length is so I can flag it if it's below 2048 bits?"}],"resultDescription":"Returns parsed details from the sel1._domainkey.<domain> TXT DNS record including the DKIM version tag (v=), key type (k=), public key length in bits, whether the domain is in testing mode, and whether the key is revoked (empty p= field). Confirms whether mail signed with the sel1 selector will successfully verify.","failureModes":["Domain has no sel1._domainkey TXT record — returns not-found or empty result","DNS resolution failure via Cloudflare DoH — transient network error","Malformed TXT record that cannot be parsed — partial or error response","Domain does not exist in DNS — NXDOMAIN response","Key is revoked (empty p=) — reported as revoked rather than an error"],"whenToPreferThis":"Use this endpoint when you specifically need to check the 'sel1' DKIM selector for a domain and want structured, parsed output including key metadata and revocation status. Prefer this over generic DNS TXT lookups when you need DKIM-specific parsing (key length, type, testing flag). Choose sibling selector-specific endpoints (e.g. dkim-selector-mx, dkim-selector-google) when targeting those selectors instead.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-20T00:59:28.795Z","isFirstParty":false,"canonicalSlug":"dkim-selector-sel1-lookup-c007a9a9"}