eWebinar protects every registration form against automated bot submissions using Google reCAPTCHA. This runs automatically — there is no toggle to enable or disable it in the editor.
How it works
When a registrant clicks the submit button, the browser sends a reCAPTCHA token in the background. The eWebinar backend verifies the token with Google's reCAPTCHA API. Legitimate human traffic passes silently; suspicious automated traffic is rejected before the registration is created.
Because eWebinar uses invisible reCAPTCHA, registrants typically don't see a challenge at all. A visible CAPTCHA challenge (the "I'm not a robot" checkbox or image puzzle) only appears in rare cases where Google's scoring system judges the interaction as suspicious.
Handling spam registrations that get through
If you're seeing junk registrations from throwaway or consumer email addresses, reCAPTCHA won't catch those — they're from real humans with disposable emails, not bots. Use the email-based filters instead:
- Block disposable email domains — blocks known throwaway services like Mailinator.
- Require work emails — blocks Gmail, Hotmail, and similar consumer providers.
- Block specific emails or domains — manual blocklist for specific addresses.