BLOGGINGSEOCore Web Vitals: Measuring User Experience on the Web

Core Web Vitals: Measuring User Experience on the Web

Core Web Vitals is a set of specific metrics introduced by Google to measure and evaluate the overall user experience of web pages. With Google’s Page Speed Checker, you can easily find out the speed of any web page.

With the continuous growth of the internet and increasing user expectations, providing a seamless and delightful web browsing experience has become a priority for website owners and developers.

Core Web Vitals aim to assess crucial aspects of web performance, interactivity, and visual stability, ensuring that web pages are fast, responsive, and visually stable. In this article, we will delve into the three core web vitals, their significance, and how they impact website rankings and user satisfaction.

Understanding Core Web Vitals:

Core Web Vitals consist of three essential metrics that assess different aspects of user experience:

  1. Largest Contentful Paint (LCP): LCP measures the time taken for the largest visible content element (such as an image, video, or text block) to render on the user’s screen. It gauges how quickly the main content becomes available, allowing users to interact with it. Ideally, LCP should occur within 2.5 seconds of the page starting to load. A fast LCP ensures that users perceive the web page as quick and responsive.
  2. First Input Delay (FID): FID evaluates the responsiveness of a web page by measuring the time between a user’s first interaction (such as clicking a button or link) and the browser’s response to that action. A low FID, typically less than 100 milliseconds, indicates that the page is highly interactive and responsive. A delay in FID can frustrate users, leading to a less satisfactory user experience.

    Interaction to Next Paint (INP): INP is a metric that measures the time it takes for a web page to respond visually after a user interacts with it. Interaction to Next Paint (INP) is a pending Core Web Vital metric that will replace First Input Delay (FID) in March 2024.
  3. Cumulative Layout Shift (CLS): CLS assesses the visual stability of a web page by measuring the unexpected layout shifts that occur during the page’s loading process. These shifts can happen when elements, such as images or ads, load after the initial page render, causing the content to shift and potentially leading to accidental clicks. A low CLS score, ideally less than 0.1, ensures a stable visual experience for users.

Importance of Core Web Vitals:

Core Web Vitals play a crucial role in determining a website’s performance and user experience. Websites that prioritize and optimize for these metrics are more likely to provide a seamless, user-friendly experience, leading to increased user engagement and satisfaction.

Additionally, Google has announced that Core Web Vitals will be incorporated as ranking factors in its search algorithm, starting from May 2021. Websites that perform well in terms of LCP, FID, and CLS are more likely to rank higher in search results, providing a strong incentive for website owners to improve their web page’s performance.

To improve Core Web Vitals and enhance overall website performance for better SEO, webmasters and developers can optimize various aspects of their websites, such as optimizing images, reducing server response times, leveraging browser caching, and minimizing render-blocking resources.

Implementing best practices to improve Core Web Vitals not only enhances SEO but also contributes to providing a more satisfying and enjoyable experience for website visitors.

With the improvisation of Core Web Vitals of a website/blog, a blogger can also improve his earning from blogging.

Optimizing Core Web Vitals:

To improve Core Web Vitals and enhance the user experience on their websites, developers can take the following optimization steps:

  1. Optimize Images and Media: Compress and optimize images and videos to reduce their file sizes and improve loading times.
  2. Prioritize Above-the-Fold Content: Ensure that the main content of the page loads quickly, giving users a sense of immediate responsiveness.
  3. Minimize JavaScript and CSS: Reduce and optimize the use of JavaScript and CSS to decrease loading times and improve page interactivity.
  4. Lazy Load Elements: Implement lazy loading for images and other media, so they load only when they come into the user’s viewport.
  5. Avoid Rendering Blocking Resources: Use asynchronous loading and deferred loading for scripts and stylesheets to prevent them from blocking page rendering.


Core Web Vitals are instrumental in assessing and enhancing the user experience on the web. By focusing on Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS), website owners and developers can ensure that their web pages load quickly, respond promptly to user interactions, and maintain visual stability. Prioritizing Core Web Vitals not only improves user satisfaction but also has a direct impact on search engine rankings, making them a vital aspect of modern web development and optimization strategies.

Saroj Meher
Saroj Meher
Howdy! Friends, I am Saroj Meher. I am an Artist. I do Painting on mediums like Acrylic, Watercolour, Oil etc. I have over 7 years of experience in WordPress. I am currently running 30+ website. I am specialized in WordPress and WooCommerce, WordPress Theme Customization and Theme Development. I can fix any kind of WordPress error/issue like PHP, CSS, Js issues and other Theme and Plugin related issues. Client's Satisfaction is my first priority.

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I am a Lecturer (English & Sociology), a professional Artist, and a blogger. I do painting, sketches since my childhood. I am in the teaching for 10 years. In this teaching line, I have experience in teaching English at High School and College levels. I have also experienced teaching computer theory during the school teaching period. This is my personal web corner over the internet.

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