Google reCAPTCHA is a free service that protects your website from spam and abuse. reCAPTCHA uses an advanced risk analysis engine and adaptive challenges to keep automated software from engaging in abusive activities on your site. It does this while letting your valid users pass through with ease.
- To Get reCAPTCHA API Key Open: https://www.google.com/recaptcha/admin/create
- Login to Your Gmail Account.
- Select and Then
- Add Your Domain Name.
- Accept the reCAPTCHA Terms of Service.
- Click on SUBMIT.
After that you can see Site Key and Secret Key to use on your website.