Identify invalid, malicious, or fraudulent email addresses at the moment of entry. Stop bad emails before they enter your database.
✓ Valid email address
✗ Disposable email not allowed
Add protection to any form in minutes
Add our lightweight JavaScript snippet to your website. Just one line of code.
Set your rules: block disposables, catch-all, free providers, or create custom rules.
Shield validates emails in real-time as users type. Bad emails blocked instantly.
Everything you need to protect your forms
Emails are verified as users type. No need to wait for form submission.
Automatically block temporary email services like Guerrilla Mail, 10MinuteMail, etc.
Identify domains that accept all emails, which often have lower deliverability.
Match Shield's look to your brand with CSS customization options.
Track blocked emails, validation stats, and form performance in real-time.
Use different configurations for different forms or domains.