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SPF / DKIM / DMARC Generator & Checker

Check and build the three DNS records that stop your domain being spoofed.

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Enter a domain to check its SPF, DKIM and DMARC records live over DNS.

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.com

Output

SPF pass, DKIM pass, DMARC p=none warning

Keyboard 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

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Version 1.0.0 · Updated 2026-09-16 · Runs entirely in your browser