Google Analytics is a free tool that allows users to track and analyze website traffic and user behavior. It provides key metrics such as number of visitors, traffic sources, which pages are most popular, and user behavior on the site. These insights allow users to better understand how people are interacting with their website and how to optimize it. Some benefits of Google Analytics include helping users avoid relying on intuition by providing data on what content and pages are successful. It also allows users to track growth over time and see the impact of marketing efforts. Overall, Google Analytics serves as a valuable portal for users to gain insights into how people are using their website.