DKIM record validator
Paste a DKIM TXT record (the value at <selector>._domainkey.<domain>). We'll grade every tag and estimate key strength.
Paste a DKIM record
Examples:
Where do I find my DKIM record? Most providers (Google, M365, Mailgun, Postmark, SendGrid) give you the TXT contents to publish at a specific selector — e.g.google._domainkey.yourcompany.com orselector1._domainkey.yourcompany.com. Look up that name in your DNS host and paste the value here.
See also the SPF builder and DMARC validator.
Keep hardening your email
Each record is one layer. Check the rest of yours — every tool is free, no account.