Cube.js is an open source serverless analytics framework that is primarily used to build internal business intelligence tools or to add customer-facing analytics to an existing application.
appmetrics.js is a small library for measuring things in your web app and reporting the results to Google Analytics.
Scroll Depth is a small Google Analytics plugin that tracks how far users are scrolling. It monitors the 25%, 50%, 75%, and 100% scroll marks, sending a Google Analytics Event at each one.
You can also track when specific elements on the page are scrolled into view.
