Datadog has introduced Real User Monitoring (RUM) to provide businesses with comprehensive visibility into their website's performance and user interactions, complementing existing tools like infrastructure monitoring and synthetic testing. By integrating the Datadog RUM SDK, businesses can automatically gather data on user interactions, such as first contentful paint and DOM events, to enhance understanding of web page interactivity and user experience. RUM organizes data into pageviews and sessions, enabling detailed analysis of user journeys and site performance, while allowing customization with global context attributes for targeted insights. Additionally, RUM captures user actions within pages, aiding in understanding custom activity like ad interactions, and supports troubleshooting by reconstructing user sessions to identify issues. By correlating real user analytics with performance data, RUM helps prioritize engineering efforts to optimize application performance and align with business objectives, offering full-stack visibility for applications regardless of their architecture or framework.