Core Web Vitals are a set of specific metrics introduced by Google to measure the user experience of a webpage. They focus on three key aspects of loading performance, interactivity, and visual stability. Optimizing these vitals is crucial because they directly impact your site's search engine ranking and overall user satisfaction.

The three Core Web Vitals are:

• Largest Contentful Paint (LCP): Measures loading performance. It marks the point when the main content of a page has likely loaded. An ideal LCP should occur within 2.5 seconds of when the page first starts loading.
• First Input Delay (FID): Measures interactivity. It quantifies the time from when a user first interacts with your page (e.g., clicks a link or button) to when the browser can begin processing that interaction. A good FID is less than 100 milliseconds.
• Cumulative Layout Shift (CLS): Measures visual stability. It quantifies how much visible content shifts unexpectedly during the loading process. A page should maintain a CLS score of less than 0.1.

You can measure these metrics using tools like Google PageSpeed Insights, Chrome DevTools, or the Search Console report. To improve your scores, focus on optimizing images, eliminating render-blocking resources, using efficient CSS and JavaScript, and ensuring your web hosting provides adequate server response times. By prioritizing Core Web Vitals, you create a faster, more stable, and more engaging experience for every visitor.