This document provides information about Google Analytics, including how it works, how to set it up, and its benefits. Google Analytics is a free web analytics tool from Google that allows users to track and report on website traffic using JavaScript code. It provides key metrics like audience demographics, traffic sources, and behavior. To use it, one creates a Google Analytics account, gets the tracking ID, and inserts the tracking code into website pages. Google Analytics is valuable for online businesses as it provides critical traffic data and insights without any costs.