Email
SPF / DKIM / DMARC Checker
Validate your email DNS records and fix deliverability problems.
Checks public DNS TXT records from your browser. Free.
About this tool
Free SPF, DKIM and DMARC checker. Validate your email authentication DNS records and get clear guidance to improve deliverability.
Frequently asked questions
What does this check?
It reads your SPF, DMARC and DKIM selector TXT records and reports common problems.
Do you store my domain?
No. Queries are made from your browser to a public resolver.
How do I fix failures?
Each finding includes a short explanation and the record you need to create.
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