Knowledge Base

Google reCAPTCHA setup

Last Modified:
17 Dec 2018
User Level:
Administrator +


For a general overview of reCAPTCHA, please see the Google guide.

To enable reCAPTCHA in TERMINALFOUR, the reCAPTCHA v2 Site key and Secret key are required.

The Google admin will need to provide this information.

If a site has not been registered, log in to Google and go to the Google reCAPTCHA admin panel.

Complete the options under "Register a new site" ensuring that reCAPTCHA v2 is chosen. reCAPTCHA v2 requires the user to click a checkbox indicating the user is not a robot.

Take a copy of the Site key and Secret key as these are required in Form builder settings.

Register a new site

  1. Label, enter a description that will allow you to identify the site in the future, e.g. website-name.
  2. Choose the type of reCAPTCHA, select reCAPTCHA v2.
  3. Domains, enter one or more domains.
  4. Send alerts to owners, check this if want Google to send you a report if it detects problems with your site.
  5. Click the register button.


Domains / sub domains need to be registered without the http(s):// and should end with the TLD (edu, com, org, net).
For example, would be invalid. The correct domain would be
If you want to use reCAPTCHA on your localhost, then you can use the key from any domain as all API keys work on localhost (

Please include the domain of the Form bank URL when configuring the Google reCAPTCHA.

Please see the Google Guide on Domain/Package Name Validation for further information.

Site key and Secret key

Take a copy of the Site key and Secret key. 


Go to System administration > System settings > Form builder to complete the configuration.