Measure page scrolling with Google Analytics using "Scroll Depth"

With Scroll Depth it is possible to monitors 25%, 50%, 75%, and 100% scroll points, and send a Google Analytics Event at each scroll point.
This is a great tool if you wish to know how much content your surfers really read on each blog post for exmple.

The plugin supports Universal Analytics, Classic Google Analytics, and Google Tag Manager.
Visit "Scroll Depth" website for more Information, Code samples and Download: