Abstract
The article discusses methods for optimizing loading time and interaction with dynamic singlepage applications (SPA). An analysis of the main SPA performance issues is presented, including delays in content loading, blocking the main thread, rendering issues and interface responsiveness. Modern optimization approaches are described, such as lazy loading, resource minification and combining, using Service Workers and preloading critical resources. Key performance analysis tools (Google Lighthouse, Chrome DevTools, WebPageTest) and user experience monitoring (Sentry, New Relic, Google Analytics) are considered. The experimental part demonstrates the effectiveness of the proposed methods using a real SPA application as an example. The obtained results show a decrease in the Time to Interactive (TTI), First Contentful Paint (FCP) and Total Blocking Time (TBT) metrics, which confirms the practical significance of the approaches.
Published Version
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