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What is Core web vitals & ways to improve on website?

Core Web Vitals are a set of performance metrics that measure the speed and responsiveness of a website. They were introduced by Google in 2020 to help website owners understand and improve the user experience of their sites. The three Core Web Vitals are:

 

  1. Largest Contentful Paint (LCP): measures the time it takes for the main content of a page to load and become visible to the user.

 

  1. First Input Delay (FID): measures the time it takes for a page to become interactive, i.e., for the user to be able to interact with it.

 

  1. Cumulative Layout Shift (CLS): measures the stability of a page, i.e., how much the content shifts around as it loads.

 

To improve the Core Web Vitals of a website, you can try the following:

 

  1. Optimize images and other large files by compressing them and using modern formats like WebP.

 

  1. Minimize the use of third-party scripts and plugins, as they can slow down the loading of a page.

 

  1. Use a content delivery network (CDN) to serve static assets, as it can reduce the loading time of a page.

 

  1. Enable caching to store commonly used resources in the user’s browser, reducing the need to download them every time the user visits the site.

 

  1. Use lazy loading to only load content as the user scrolls down the page, rather than all at once.

 

  1. Optimize the structure and size of your HTML, CSS, and JavaScript files to reduce their size and improve loading times.

 

  1. Use a tool like Lighthouse, which is a part of the Chrome DevTools, to analyze the performance of your website and identify areas for improvement.