DKIM Inspector

This page lets you configure and check your DKIM record for a domain.
How to add a DKIM record in DNS?
  1. Generate a DKIM key in your email platform (Google Workspace, M365, Mailgun, SendGrid, Brevo, Postmark, …).
  2. Create a TXT record in your DNS.
  3. Name / Host: <selector>._domainkey (e.g. google._domainkey).
  4. Value: v=DKIM1; k=rsa; p=<public_key> (or k=ed25519).
  5. TTL: default (~1 h) or 5–15 min while testing.
  6. Save, wait for propagation, then run the check again.
What does it mean?
TAGDEFAULTMEANING
vDKIM1Record version.
krsaAlgorithm (rsa or ed25519).
p—Public key (base64). Required to validate signatures.
t—Flags: y (testing), s (strict—same domain only).
s*Service types (legacy).
n—Optional note.
g*Granularity (legacy).
Test your DKIM before adding it to DNS

Paste your DKIM public key value and test it.