DKIM Checker

Look up a specific selector and inspect the published key.

Recent:

Don't know your selector? Use the selector finder →

Result for k1._domainkey.github.com

k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDbNrX2cY/GUKIFx2G/1I00ftdAj713WP9AQ1xir85i89sA2guU0ta4UX1Xzm06XIU6iBP41VwmPwBGRNofhBVR+e6WHUoNyIR4Bn84LVcfZE20rmDeXQblIupNWBqLXM1Q+VieI/eZu/7k9/vOkLSaQQdml4Cv8lb3PcnluMVIhQIDAQAB;
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.