Enabling CAPTCHA to Prevent SPAM Entries

By default, Wufoo will automatically show a captcha on your form when it detects abusive behavior.

Adding a CAPTCHA to your form helps ensure that only humans submit entries to your form—not bots. It works by asking the person filling out your form to type the characters shown in a randomly generated image.

To enable CAPTCHA to your form:

  1. Log in and go to Forms.
  2. Click Edit next to your form.
  3. In the Form Builder, click the Form Settings tab.
  4. From the Captcha dropdown in the Limit Form Activity section, choose one of the following options:
Option
Description
Auto (Recommended)

Only show a CAPTCHA on your form when Wufoo detects abusive behavior. "Abusive behavior" usually means an abnormally high amount of form activity in a short period of time from the same network—like if one person tries to aggressively submit a huge number of entries quick succession.

We recommend this option because it allows you to protect your form without affecting the converstion rate on a form (sometimes people get frustrated with being asked to complete an extra task before submitting).

Always ShowShow a CAPTCHA to every person that fills out your form, no matter what.
Never Show

Never show a CAPTCHA on your form.

This setting is helpful if you expect to receive a large number of entries from the same network—a situation which may otherwise signal abusive behavior.

Since we work with a third-party to generate our CAPTCHAs, there's no way to customize the field label or images it displays.

For info on preventing or removing duplicate entries, see Duplicate Entries.
Adding a CAPTCHA to your form helps ensure that only humans get to submit entries to your form—not bots. It works by asking the person filling out your form to type the characters shown in a randomly generated image.

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