DKIM checker
Check the public DKIM key of your domain: enter selector and domain to see key type, length and status instantly.
Not sure about the selector?
You find the selector in the DKIM-Signature header (s=) of any signed email. Common selectors to try:
defaultgoogleselector1selector2k1k2s1s2maildkimfm1Google Workspace uses google, Microsoft 365 uses selector1 and selector2, Amazon SES uses three random selectors from its DNS setup.
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