Core Web Vitals

Google Core Web Vitals are a set of metrics designed to measure the user experience of web pages. The Core Web Vitals are part of Google’s efforts to provide a better web for everyone, and to make it easier for website owners to understand and improve the user experience of their pages.

The Core Web Vitals consist of three key metrics: Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS). These metrics measure the loading speed, interactivity, and visual stability of a page, respectively. Google has identified these metrics as being crucial to the user experience and has made them a key factor in determining the ranking of web pages in search results.

Largest Contentful Paint (LCP) measures the loading speed of a page, and is defined as the time it takes for the largest content element to be visible in the viewport. A fast LCP is important because it provides users with a quick indication of the page’s content, and helps to reduce the bounce rate of the page. A slow LCP can result in users leaving the page before it has finished loading, which can harm the overall user experience and reduce the effectiveness of the page.

First Input Delay (FID) measures the interactivity of a page, and is defined as the time it takes for a page to respond to the first user interaction. A fast FID is important because it provides users with a smooth and responsive experience, and helps to reduce the frustration of using the page. A slow FID can result in users losing their sense of control over the page, and can lead to a poor user experience.

Cumulative Layout Shift (CLS) measures the visual stability of a page, and is defined as the total amount of layout shifts experienced by users during the loading of the page. A low CLS is important because it provides users with a stable visual experience, and helps to reduce frustration and improve the overall user experience. A high CLS can result in users losing their focus, or being confused by unexpected changes to the page layout, which can harm the overall user experience.

The benefits of having a website that scores well on the Core Web Vitals are many. A website with a fast LCP, a fast FID, and a low CLS will provide users with a better overall experience, and is more likely to be ranked higher in search results. This can lead to an increase in traffic and engagement, and can help to improve the success of the website. In addition, a website with a fast LCP, a fast FID, and a low CLS will be more likely to perform well on mobile devices, which are becoming increasingly important for users and for search engines.

To check your website’s Core Web Vitals, you can use a number of tools, including the Lighthouse performance audit in Chrome DevTools, the PageSpeed Insights tool, and the Search Console Core Web Vitals report. These tools will provide you with a detailed analysis of your website’s performance on the Core Web Vitals, as well as other performance metrics.

In the Lighthouse performance audit in Chrome DevTools, you can run an audit on any page, and receive a report that includes information on the LCP, FID, and CLS, as well as other performance metrics. The report will also provide recommendations for improving the performance of the page, which can help you to make changes that will improve the overall user experience.

The PageSpeed Insights tool is a free, web-based tool that provides insights into the performance of a page, including information on the Core Web Vitals. The tool provides a score for each of the Core Web Vitals, as well as a detailed report on

Google PageSpeed Insights is a free tool that analyzes the performance of a web page and provides recommendations for improvement. It evaluates the page’s content, structure, and loading speed, and generates a score that reflects the page’s overall performance. The tool provides actionable insights into areas that can be optimized, including the size of images, the use of CSS and JavaScript, and the efficiency of the page’s code. PageSpeed Insights also provides a comparison of the page’s performance on desktop and mobile devices, allowing website owners to see how their pages perform on different platforms and make improvements accordingly. Overall, Google PageSpeed Insights is a useful tool for website owners looking to improve the performance and user experience of their pages.