{"slug":"api-probekit-dev-v1-mail-dkim-discover-c23a36","title":"Try 27 common DKIM selectors (Google, Microsoft 365, Mailchimp, SendGrid, Mailgu","host":"api.probekit.dev","method":"GET","resource":"https://api.probekit.dev/v1/mail/dkim-discover","category":"commerce","description":"Try 27 common DKIM selectors (Google, Microsoft 365, Mailchimp, SendGrid, Mailgun, Zoho, Proton, Fastmail, Mailjet, Amazon SES and generic names) for a domain and validate every key found: type, size, revocation and testing flag. Use when an agent needs a domain's DKIM keys but does not know the sel","price_listed":0.02,"price_asked":0.02,"state":"answering","state_label":"Answering","checks_7d":1,"answered_7d":1,"latency_ms_median":348,"reported_calls_30d":1,"reported_payers_30d":1,"networks":["eip155:8453"],"badge":"unverified","paid_checks_7d":0,"paid_ok_7d":0,"example_input":{"method":"GET","queryParams":{"domain":"example.com"},"type":"http"},"output_schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET","HEAD","DELETE"],"type":"string"},"queryParams":{"additionalProperties":false,"properties":{"domain":{"examples":["example.com"],"maxLength":1024,"minLength":1,"title":"Domain","type":"string"}},"required":["domain"],"title":"DomainInput","type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"}},"required":["input"],"type":"object"},"history":[{"day":"2026-10-26","reachable":true,"status":402,"valid_402":true,"asked_usdc":0.02,"price_match":true,"latency_ms":348,"error":null}],"description_full":"Try 27 common DKIM selectors (Google, Microsoft 365, Mailchimp, SendGrid, Mailgun, Zoho, Proton, Fastmail, Mailjet, Amazon SES and generic names) for a domain and validate every key found: type, size, revocation and testing flag. Use when an agent needs a domain's DKIM keys but does not know the selector. Finding none is a hint, not proof that DKIM is missing.","last_updated":"2026-10-25T18:46:54.401Z","schemes":["exact"]}