Event tracking is the process of monitoring and analyzing user interactions with a website or mobile app, such as clicks, downloads, form submissions, or video views, to gain insights into user behavior, preferences, and engagement. Event tracking can be implemented using various tools and techniques, such as Google Analytics, Mixpanel, or Segment, and can involve different types of events, such as page views, conversions, or custom events. Event tracking can help improve website and app performance, usability, and conversion rates, by identifying and addressing user pain points, optimizing user flows, and personalizing user experiences.