Casper’s Leave Notice free WordPress plugin

Casper’s Leave Notice warns your users when they are about to leave your website. All you have to do is install and activate, and the plugin does the rest! You can edit the content that shows up in the pop up window to fine tune the message your users see. You can also add domain names to exclude from the pop up. For example, if a link sends your users to a third party tool – like a shopping cart – just add the domain to the exclusion list and your guests will be none the wiser.