ToolMin
Professional Developer Tools Collection
DKIM Record Checker
Free online DKIM Record checker tool to verify and validate your domain's DKIM records
Verify DKIM Records
Verify and analyze your domain's DKIM records to ensure proper email authentication and improve email deliverability.
Validate DKIM Records
Check if your DKIM records are properly configured and follow best practices.
Key Verification
Verify your DKIM public key and ensure it matches your email signing configuration.
Security Analysis
Get detailed analysis of your DKIM configuration and recommendations for improvement.
Why Check DKIM Records?
DKIM (DomainKeys Identified Mail) adds a digital signature to your emails that verifies they actually came from your domain and weren't modified in transit. Proper DKIM configuration is essential for email deliverability and preventing email spoofing.
How to Use the DKIM Checker Tool
Enter Domain Name
Input your domain name (e.g., example.com) in the first field.
Enter DKIM Selector
Input your DKIM selector in the second field. Common selectors include:
- default - Standard selector
- google - Used by Google Workspace
- selector1 - Used by Office 365
Check Results
After clicking "Check DKIM", review:
- DKIM Record - Shows the full DKIM record
- Tags Analysis - Detailed breakdown of each DKIM tag
- Analysis - Overall health check of your DKIM configuration
📝 Helpful Tips
- Green background indicates valid configuration
- Red background indicates issues that need attention
- If you don't know your selector, check your email service provider's documentation
- Common email providers and their typical selectors:
- Google Workspace: google
- Office 365: selector1, selector2
- Mailchimp: k1
- SendGrid: s1, s2
Frequently Asked Questions
What is a DKIM Record?
DKIM (DomainKeys Identified Mail) is an email authentication method that adds a digital signature to your emails. It verifies that emails came from your domain and weren't modified during transit, helping prevent email spoofing and improving deliverability.
How do I find my DKIM selector?
Common DKIM selectors vary by email provider:
- Google Workspace: Uses 'google'
- Office 365: Uses 'selector1' or 'selector2'
- Mailchimp: Uses 'k1'
- SendGrid: Uses 's1' or 's2'
Check your email service provider's documentation for the correct selector.
Why is DKIM important for email?
DKIM is crucial for email authentication as it:
- Helps prevent email spoofing
- Improves email deliverability
- Builds domain reputation
- Provides recipients with confidence that emails actually came from your domain
- Ensures emails weren't tampered with during transmission
How do I check if my DKIM is set up correctly?
To check your DKIM setup:
- Enter your domain name in the tool above
- Input your DKIM selector
- Click "Check DKIM"
The tool will verify your DKIM record, analyze the configuration, and provide detailed information about each DKIM tag along with recommendations for improvement.