Captcha: Avoid spam submissions

Hello,

Can I add a random formula (2+4 or 3+4) in my form because i want the people to prove that they are human and not a robot. I already have a form on my website with that formula but when I copy the form from my website the formula is not in the Jotform form. Is there a widget that can help me or can't it be done in Jotform

Kind regards,

Max Huizing

You can use the Google reCAPTCHA:

https://widgets.jotform.com/widget/google_recaptcha

Or for stronger verification you can use the email validator widget:

https://widgets.jotform.com/widget/e-mail_validator