DKIM Checker

Look up a specific selector and inspect the published key.

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Result for mandrill._domainkey.cloudflare.com

v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCrLHiExVd55zd/IQ/J/mRwSRMAocV/hMB3jXwaHH36d9NaVynQFYV8NaWi69c1veUtRzGt7yAioXqLj7Z4TeEUoOLgrKsn8YnckGs9i3B3tVFB+Ch/4mPhXWiNfNdynHWBcPcbJ8kjEQ2U8y78dHZj1YeRXXVvWob2OaKynO8/lQIDAQAB
Key type
rsa
Key length
1024 bits
Revoked
no
Test mode
no

Issues

  • Warning DKIM key is 1024 bits.
    Modern guidance is 2048+. Most providers can rotate to 2048-bit keys without breaking anything.