Web Vitals
Web Vitals is a set of standardized metrics developed by Google to measure and quantify the user experience of web pages, focusing on loading performance, interactivity, and visual stability. It includes core metrics such as Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS), which are essential for assessing real-world user experience. These metrics help developers understand how their websites perform from a user's perspective and identify areas for improvement.
Developers should learn and use Web Vitals to optimize website performance, enhance user satisfaction, and improve search engine rankings, as Google uses Core Web Vitals as a ranking factor in search results. It is crucial for building fast, responsive, and stable web applications, particularly in e-commerce, media, and other user-centric industries where poor performance can lead to high bounce rates and lost revenue. By monitoring and improving these metrics, developers can ensure their sites meet modern web standards and provide a better overall experience.