Email Auth Checker (SPF, DKIM, DMARC)
Audit a domain's SPF, DKIM and DMARC records and get a graded report with fixes to stop email spoofing.
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Blog tutorials where this tool comes in handy.
Guide 7 Free Tools to Audit Your Domain Security (Email, DNS, and SSL) Audit SPF, DKIM, DMARC, WHOIS, DNSSEC, and your web headers with 7 free tools — no installation or sign-up needed. Full diagnosis in 10 minutes. Guide Audit Your Domain Email Security: SPF, DKIM, DMARC, and SSL Step by Step 2026 guide to auditing your domain security: configure SPF, DKIM, and DMARC to keep emails out of spam, verify your SSL, and run a full diagnosis in 15 minutes.
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