SPF / DKIM / DMARC Generator & Checker
Check and build the three DNS records that stop your domain being spoofed.
About the SPF / DKIM / DMARC Generator & Checker
Look up a domain's live SPF, DKIM and DMARC records over encrypted DNS and get a plain-language verdict on each one, including SPF lookup limits, weak all mechanisms, monitoring-only DMARC policies and revoked DKIM keys. The generator tab builds correct records from your sending servers, provider includes, reporting address and alignment settings, ready to paste into DNS.
Examples
Check a domain
example.comOutput
SPF pass, DKIM pass, DMARC p=none warningKeyboard shortcuts
- Copy the main outputCtrl / ⌘ + Shift + C
- Download the resultCtrl / ⌘ + S
- Share this toolCtrl / ⌘ + Shift + S
- Reset the inputsAlt + R
- Open the tool search paletteCtrl / ⌘ + K
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Frequently asked questions
Version 1.0.0 · Updated 2026-09-16 · Runs entirely in your browser