Google Analytics is a web analytics service that provides detailed insights into website traffic, user behavior, and marketing performance. It helps website owners and marketers track key metrics such as page views, session duration, bounce rates, and conversion rates, enabling data-driven decision-making. With powerful reporting tools, segmentation, and integration with other Google products, it offers a comprehensive view of user interactions and campaign effectiveness. Google Analytics is widely used to optimize website performance, improve user experience, and enhance marketing strategies.