You know what really grinds our gears? Spam bots.
We currently have two ways to protect yourself from spam bots. Captcha and the Honeypot.
When creating a new Web Form, under the Settings tab be sure to select the option for Enable Captcha.
This will place the Google reCAPTCHA code on your form. Your website visitors will be required to physically checkoff that box.
Spam bots tend to look for all the <input> fields in a <form> and automatically fill in all the values with their spammy nonsense. We provide a very simple feature that creates a hidden form field that is only visible to bots. Since it's a regular input field, the bot will automatically try to fill it out. If we detect the hidden field is trying to be submitted, then we reject the entire submission.
To implement this feature, edit your Web Form code by navigating to the Content > Web Forms > Your Web Form > Customize section.
If there's no HTML markup displayed in the editor, click the Sync button for the markup to be generated. Place the following code anywhere within the <form></form> element.