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DKIM Checker (analysis)

Analyze and validate DKIM signatures for any domain
This is all you need to get started. Additional options below are optional.

Optional Settings (leave empty for automatic detection)

Email services you use

Select your email providers to check their known DKIM selectors
Checks selectors found in previous analyses of this domain for faster and more accurate results
Search using predictive patterns and historical data (yearly variations, provider patterns like google2025, google2026, etc.)
If you know specific DKIM selectors for your domain, enter them here.

DKIM Generator

Build your DKIM record and options — p, k, t

DKIM Record Editor

Enter or edit DKIM record to validate its syntax

DKIM

DKIM adds a cryptographic signature to your emails so recipients can verify authenticity and integrity.