Core Web Vitals
Core Web Vitals are a set of metrics that measure the speed, responsiveness, and visual stability of a website. These metrics are designed to help website owners understand how their site is performing from a user experience perspective and identify areas for improvement.
The three Core Web Vitals are:
- Largest Contentful Paint (LCP): Measures loading performance and is the time it takes for the largest content element on a page (such as an image or text block) to load.
- First Input Delay (FID): Measures interactivity and is the time it takes for a user to be able to interact with a page after it has loaded.
- Cumulative Layout Shift (CLS): Measures visual stability and is a measure of how much the layout of a page shifts during loading.
Google has announced that it will use these metrics as a ranking factor for SEO starting in May 2021, so it’s important for website owners to monitor and optimize their website for these metrics.
To improve your website’s Core Web Vitals, you can consider the following:
- Optimize your images, videos and other media to reduce their file size
- Minimize the use of third-party scripts that might slow down your website
- Use a Content Delivery Network (CDN) to serve your static files
- Use browser caching to reduce the number of requests to the server
- Lazy-load images and videos to improve the loading performance of your website
- Consider using a preloading strategy to make your pages load faster
You can use Google’s PageSpeed Insights, Lighthouse or Chrome DevTools to check the performance of your website and get suggestions for improvements.