In this document, you will learn how to enable Google's reCAPTCHA spam prevention solution in your Shack Forms.

This is a three-step process:

• Get Google's reCAPTCHA key
• Enable the "Captcha - reCaptcha" plugin
• Add Google's reCAPTCHA to Shack Forms.

Let's take a look at this process in more detail.

Step #1. Get the reCAPTCHA keys

First, you need to generate keys for your domain with Google.

• Go to the Google reCAPTCHA site.
• Click the "My reCAPTCHA" button:

• Enter your site details such as label, domain and email owner:

Step #2. Enable the "Captcha - reCaptcha" plugin

• Go back to your Joomla administrator panel.
• Go to "Extensions" > "Plugin Manager".
• Look for the "Captcha - reCaptcha" plugin.

In the options for this plugin, enter these details:

• Version: Choose 2.0.
• Site key and Secret key: Use the ones you generated in the previous step.
• Theme: Choose any theme to your liking.

Don't forget to change the plugin status to "Published" and click "Save & Close" when you’re done.

• Go to "System" > "Global configuration" > "Default captcha".
• Choose "ReCaptcha".
• Click "Save & Close".

Step #3. Add Google's reCAPTCHA to Shack Forms

Now you can add reCAPTCHA to Shack Forms.

• Go to "Extensions" > "Modules".
• Open your Shack Forms module.
• Click the "Advanced" tab and you'll be able to choose the reCAPTCHAS for spam prevention. 

Here's a preview of how reCaptcha will look on your Shack Forms: