Know How to Improve Core Web Vitals: Elevate Your Site Performance 

Know How to Improve Core Web Vitals: Elevate Your Site Performance 


With users expecting instant access and seamless interactions, even the slightest delay can lead to frustration and lost opportunities. This is where Core Web Vitals assessment and improvement come into play, serving as vital indicators of your website’s health and user experience. 

Improving Core Web Vitals is not just about keeping your visitors happy; it is also a key factor in search engine rankings. Google has made it clear that these metrics are part of their ranking algorithm for SEO, emphasizing the importance of a fast, responsive, and stable website.  

This guide will provide you with actionable insights on how to fix core web vitals. 

Why Core Web Vitals Are Important?  

Core Web Vitals play a crucial role in enhancing your search rankings as they provide insights into the performance of your website, highlighting areas for improvement.  

Specifically, these metrics focus on: 

  • Load time: The time it takes for a webpage to fully display its content to the user. 
  • User interactivity: The responsiveness of a website to user inputs, such as clicks or taps. 
  • Visual consistency: The stability of a webpage’s layout and visual elements as it loads and interacts with the user. 

These factors are among the various elements of core web vitals assessment that Google’s algorithms use to assess a website’s health.  

Mobile-friendliness is another critical factor, especially given the increasing number of users accessing the web via mobile devices. A website that is not optimized for mobile could potentially miss significant traffic and business opportunities. 

Website security is also vital in protecting your site from online threats such as malware and hacking, ensuring the safety of both your content and your users’ data. 

By adhering to these standards and optimizing Core Web Vitals, you can boost your website’s performance and achieve higher search rankings. 

How Core Web Vitals Work?  

Core Web Vitals are a set of metrics that Google uses to measure the user experience of a webpage. They focus on three main aspects: 

  • Largest Contentful Paint (LCP): This metric measures the load time of a webpage. It specifically looks at the time taken for the largest content element (like an image or text block) to become visible to the user. A good LCP score is 2.5 seconds or less. 
  • First Input Delay (FID): This metric measures user interactivity. It captures the time from when a user first interacts with a page (like clicking a link or tapping a button) to the time when the browser can respond to that interaction. A good FID score is 100 milliseconds or less. 
  • Cumulative Layout Shift (CLS): This metric measures visual stability. It quantifies the amount of unexpected layout shift that occurs on a webpage as it loads. A good CLS score is 0.1 or less. 

How to Measure Core Web Vitals? 

Core Web Vitals can be measured using various tools that provide insights into the user experience of a webpage. These tools help identify areas for improvement and track the performance of your website over time. 

1. PageSpeed Insights:  

PageSpeed Insights is a tool by Google that measures the performance of a webpage, including its Core Web Vitals. It provides a score for mobile and desktop versions, highlighting issues such as slow load times, poor interactivity, and visual instability. The tool offers detailed recommendations for improvement, making it easier for developers to optimize their websites. By entering a URL, users can quickly obtain an analysis of the page’s performance, including its LCP, FID, and CLS scores, along with suggestions for enhancing the user experience and overall website speed. 

2. Core Web Vitals Chrome Extension:  

For those seeking a more hands-on approach to monitoring their website’s performance, the Core Web Vitals Chrome Extension is a perfect companion. This nifty tool sits quietly in your browser’s toolbar, constantly keeping an eye on the LCP, FID, and CLS metrics of any webpage you visit. With just a glance, you can get a real-time snapshot of your site’s health, making it easier to pinpoint and rectify any performance issues on the fly. 

3. Chrome User Experience Report (CrUX):  

Imagine having a bird’s-eye view of your website’s performance across the vast landscape of the internet. That is precisely what the Chrome User Experience Report (CrUX) offers. By tapping into a vast pool of user experience data from millions of websites, CrUX provides a wealth of insights into how real users interact with your site. This treasure trove of information is accessible through various tools, enabling you to benchmark your site’s performance, identify trends, and make data-driven decisions to improve your Core Web Vitals scores. 

How to Improve Core Web Vitals? 

To improve Core Web Vitals, you can implement several optimization strategies. 

Implement a Caching Solution:  

Caching stores copies of your website’s files, reducing the time it takes to load them on subsequent visits. Implementing a caching solution like browser caching or server-side caching can significantly improve LCP by decreasing load times for returning visitors. 

Eliminate Render-Blocking:  

Render-blocking resources, such as CSS and JavaScript, can delay the rendering of your webpage. By eliminating or minimizing these resources, you can improve LCP and FID. Techniques include inlining critical CSS, asynchronously loading JavaScript, and deferring non-essential scripts. 

Defer Loading of JavaScript:  

Deferring the loading of non-essential JavaScript until after the main content has loaded can improve FID and LCP. This ensures that the browser can focus on rendering the important content first, leading to a faster and more responsive user experience. 

Use a CDN:  

A Content Delivery Network (CDN) distributes your website’s content across multiple servers around the world. By serving content from a location closer to the user, a CDN can reduce latency and improve LCP, especially for geographically diverse audiences. 

Optimize Images: 

Large image files can slow down your website. Optimizing images by compressing them and using modern formats like WebP can significantly reduce their size without compromising quality, leading to faster LCP. 

Implement Lazy Loading:  

Lazy loading defers the loading of non-essential images and other media until they are needed (e.g., when they enter the viewport). This reduces the initial load time and improves LCP by prioritizing the loading of critical content. 

Optimize Your Website Fonts:  

Web fonts can add significant weight to your website. By optimizing fonts through techniques like font subsetting, using variable fonts, and prioritizing the loading of visible text, you can improve LCP and reduce CLS. 

Upgrade Your Website Hosting:  

The quality of your website hosting can directly impact your website’s speed. Upgrading to a faster, more reliable hosting provider can improve LCP and overall site performance, providing a better user experience. 

A Core Web Vitals assessment and strategy to improve it is important. Knowing how to Improve Core Web Vitals can help improve elements like SEO and user experience, and further impact your website. 

Hosting performance is also a vital element that can affect your website. BigRock is known for its reliable hosting services, which include features like 99.9% uptime and dedicated 24×7 support. Partner with us to support your core web vitals improvement strategy. 


Web hosting specialist with a knack for creativity and a passion for baking, serving up tech solutions with a side of sweetness.