Plugin: wp-scroll-depth (Used by 309 domains)

WP Scroll Depth is a simple WordPress plugin that loads and calls the Scroll Depth jQuery script.

Google Analytics doesn’t capture user scrolling information by default. This could be very important information if you have tall, scrolling, pages. Scroll Depth sends this information as Google Analytics events.
Update: Google Tag Manager now includes Scroll Depth and Element Visibility triggers. If you are running GTM, you don’t really need this plugin.

From the Scroll Depth website:

Scroll Depth is a small Google Analytics plugin that allows you to measure how far down the page your users are scrolling. It monitors the 25%, 50%, 75%, and 100% scroll points, sending a Google Analytics Event at each one.
You can also track when specific elements on the page are scrolled into view. On a blog, for example, you could send a Scroll Depth event whenever the user reaches the end of a post.
The plugin supports Universal Analytics, Classic Google Analytics, and Google Tag Manager.

More information about Scroll Depth can be found in the Scroll Depth documentation.
This version incorporates support for the new (Feb 2018) “gtag” Google Analytics snippet courtesy of Jalil Wahdatehagh.
This code has been modified to more closely match the event structure used by the other GA implementations.

Features:

• Simple plugin – you don’t need to modify your theme to load the JavaScript
• Implements basic scrolling events (25%, 50%, 75%, 100%) with no additional configuration
• Admin Panel to configure all available options

Requirements:

• Google Analytics
• jQuery 1.7 or higher

Since this plugin sends Google Analytics Events, you must be running Google Analytics to see any results.

While jQuery is probably already available in your theme, in the unlikely event that it isn’t, you can use a plugin like WP jQuery Plus to add it to your site.