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This post explains how to add Google’s reCAPTCHA to any USP Form. You can add either the original reCAPTCHA (version 1) or the new noCAPTCHA reCAPTCHA (version 2). Alternately, you can use the default antispam Challenge Question.

Google reCAPTCHA

To add Google reCAPTCHA field to your USP Form, follow these steps:

  1. Sign up for a free Public and Private Key
  2. Visit the USP Pro General settings > “Antispam/Captcha”
  3. Enter your Public and Private Keys via the settings, “reCAPTCHA Public Key” and “reCAPTCHA Private Key”
  4. Select which version of reCAPTCHA to use via the setting, “reCAPTCHA Version”
  5. Click “Save Changes” to save your changes

After following theses steps the Google reCAPTCHA field can be added to any form using the shortcode, [usp_captcha]. Here is a screenshot showing the original reCAPTCHA displayed on the form:

USP Pro - Original Google reCAPTCHA

And here is another screenshot showing the new noCAPTCHA reCAPTCHA displayed on the form:

USP Pro - Google noCAPTCHA reCAPTCHA

Use Anti-spam Challenge Question

If you would rather use the plugin’s built-in anti-spam Challenge Question, follow these steps:

  1. Visit the USP Pro General settings > “Antispam/Captcha”
  2. Specify a question for the setting, “Challenge Question”
  3. Specify a response for the setting, “Challenge Response”
  4. Optionally check the box to enable “Case-sensitivity”
  5. Make sure the settings “reCAPTCHA Public Key” and “reCAPTCHA Private Key” are completely empty/blank.
  6. Click “Save Changes” to save your changes

After following theses steps the Google reCAPTCHA field can be added to any form using the shortcode, [usp_captcha].