Free Domain Security Checker
Instantly check your domain's MX, SPF, DKIM, and DMARC records to ensure proper email configuration and security.
💡 Tips:
- • Enter domain without http:// (e.g., "yourdomain.com")
- • DKIM selector is usually "default", "google", or "selector1"
- • This tool checks public DNS records in real-time
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MX Records
Directs email to your mail servers. Essential for receiving emails.
Tells sending servers where to deliver emails for your domain
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SPF Record
Prevents email spoofing by specifying allowed sending servers.
Lists IP addresses authorized to send email on behalf of your domain
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DMARC Record
Tells receiving servers how to handle unauthenticated emails.
Provides instructions for handling emails that fail SPF/DKIM checks