js-scrolldepth

A simple vanilla javascript plugin to track scroll depth. A lot of this was borrowed from @robflaherty. I needed a stripped-down version that didn't require jQuery as a dependency.

Tested on: Chrome, Firefox, Safari, IE7-11

To initialize: simply add the script to your webpage.

Currently I'm logging (console.log):

• baseline - fired when plugin loads
• scrolled 25%
• scrolled 50%
• scrolled 75%
• scrolled 100%

You can drop-in any analytics code in place of the console.log.