A vast majority of comment spams gets automatically blocked by Akismet, but still you must have noticed that many kinds of spambots that successfully post comments on your website, here comes the use of CAPTCHA to block spam comments. In this tutorial we will provide you some easy steps to enable reCAPTCHA for your WordPress site.
Install and activate the WP-reCaptcha plugin then visit your admin area Dashboard -> Settings -> reCAPTCHA page. The plugin requires API key to work. For creating your API keys, visit the reCAPTCHA webpage hereA, sign in with your Google Account and follow the steps:
Click ‘Get reCAPTCHA‘ button followed by ‘Signup Now‘ button.
Add your website and click ‘Create‘ button. It will be generating your reCAPTCHA API Keys.
Copy and paste the private & public API keys into WP-reCAPTCHA Options page (Dashboard -> Settings -> reCAPTCHA) and click ‘Save reCAPTCHA changes‘ button.
That’s it, reCAPTCHA is now protecting your comment form.