Stop Junk is a WordPress plugin to stop spam or junk comments appear on your blog. It does this by asking the user to enter the result of a simple math problem in a text box before posting a comment.

How to install and use the plugin

1. Upload stop-junk directory to the /wp-content/plugins/ directory.
2. Activate the plugin through the Plugins menu in WordPress.
3. Set the color of the verification text by clicking the Stop Junk Plugin menu under the Plugins folder in WordPress.
4. Test out the plugin by going to any comments form on your page. Make sure you are logged out to see the Verification box.

Screenshot

Demo

View the comments box below for a demo on how the plugin works. You will need to be logged out to see the Validation Code box.