Free DMARC, SPF & DKIM DNS Record Lookup Tools
Email authentication depends on properly configured DNS records. These free tools let you lookup and validate your domain's DMARC, SPF, and DKIM records instantly. Each check parses the raw DNS response, validates syntax and policy structure, and highlights configuration issues that can impact deliverability or weaken domain protection.
Whether you are diagnosing authentication failures, preparing to move to enforcement, or confirming a new deployment, these tools provide clear technical insight without requiring manual DNS inspection.
DMARC Checker
Look up your DMARC record, validate policy tags, and get recommendations to strengthen email authentication.
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Validate your SPF record, inspect mechanisms, and identify misconfigurations that can affect delivery.
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Look up a DKIM selector and verify your public key is correctly published and ready for authentication.
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