SPF, DKIM & DMARC Checker
Check and validate the SPF, DKIM and DMARC DNS records that protect your domain’s email.
Frequently asked questions
What are SPF, DKIM and DMARC?
They are DNS records that prove your email is legitimate: SPF authorises sending servers, DKIM signs messages, and DMARC tells receivers what to do with failures.
Why is a DKIM selector needed?
DKIM records live under a selector (e.g. google._domainkey.yourdomain.com). We check common selectors automatically, or you can enter your own.
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