How should you optimize your web pages so that your users have a seamless experience? So how do you measure whether people are experiencing a good user experience on your site? So that’s where the best internet vitals come in.

These core web vitals are a set of metrics that are used to evaluate how people use a webpage. They also measure the other dimensions of the website, like the load time, responsiveness, and interactivity.

It is Google that is important, and the importance of the web’s core web vitals is an important part of enhanced ux. When you improve your websites’ core web vitality score, you will also improve the seo.

In this article, I am going to explain what Core Web Vitals are, how they are impacted by seo, and what different ways you can improve Core Web Vitals metrics in order to boost ux.

Let’s get started!

How and from where can I find out the latest figures from the Core Web Vitals Report?

When you build a web page, you should use a data sheet that is based on real world usage and statistics. It shows the performance of urls divided into three groups – status, metric group, and url group (group of similar web pages).

Google gives you several ways to measure the performance of your website vitals. These are the ones that are included.

  • You can use Google Search Console.
  • PageSpeed Insights – What you can find out about PageSpeed.
  • Google Chrome devtools.

This is how you can use the tools to measure your web vitality score.

Google Search Console provides a report on core web vitals.

Check your site’s key web vitals through the new report from Google Search Console.

Go to “core web vitals” under “experience,” and click on the link in the image below.

core web vitals in google search console

There are two reports that we released. One is for mobile and one is for desktop.

moble and desktop reports in search console

The report will include URLs and their performance.

core web vitals report

It is ideal to place your website on a site that is wider than just one page. In this report, you can see the web pages that are relevant.

In the screenshot below, you can see that there are no pages on the web that have LCP issues.

lcp issue on mobile

Clicking on that URL will take you to a list of all the URLs that have that same error.

There are some URLs that might be omitted because of lack of data to report. That is especially true if your site is brand new and you have only a few landing pages.

Web performance: Essential for improving page speed.

You can also assess Core Web Vitals report via Google’s PageSpeed Insights – What you can find out about PageSpeed. (PSI). This report was written on the basis of the Chrome User Experience Report (crux) data.

In this report, you’ll also find additional information about the important factors that affect core web vitals metrics. It also gives you some suggestions for improving your web vitality score.

When you want to increase the speed of your website, enter the URL of your website in the given box and click on the “analyze” button.

google page speed insights

After that happens, the tool will display the web vitals results for desktop and mobile devices, as shown in the image below.

pagespeed insights check

pagespeed insights check 2

In addition to these issues, pagespeed insights also gives you numerous optimization opportunities, like in the image below.

pagespeed recommendations

So, the updated Chrome dev tools allow you to find and fix any issues with visual stability that you encounter on a page.

Other tools measure the total blocking time (tbt).

Tbt is listed at the bottom left corner of the window.

This is a guide on how to analyze web core vitals using Chromedev tools.

  • So in order to open Dev Tools, right-click your mouse, choose “More tools” and click on “Developer tools.”
  • Go to the Performance tab.

chrome dev tools

  • Click on the record button to load the page again.

record button in dev tools

  • So, once the page has been loaded, stop recording.
  • In this lesson you’ll learn about different metrics.

chrome dev tools results

It is important for you to know the core web vitals and their impact on seo and Google ranking.

That is one of the most important aspects of SEO, because it lets you know how users feel about your site.

When visitors have a pleasant experience on your site, they will return to your site, and they will be able to recommend your website to their friends.

If your web page is unresponsive and full of pop-ups, it will cause those people to not visit the site again.

Google chooses sites that deliver a great experience. The results of using core web vitals to measure the impact of ux on your sites.

Typical components of the core web vitals.

These are the most important aspects of the internet vitality.

The Largest Contentful Paint (LCP)

This is one of the metrics you can use to measure how users experience their businesses. Lcp measures the time that the containers are loaded. What I am measuring is the time it takes to render the largest content element on the user’s screen.

You need your website to load quickly, in order to provide a pleasant user experience. As you already know, pages that load faster are worth more, and that leads to higher SEO rankings. So a high load time can also affect the engagement and conversion rates. So what is meant by lcp?

Whatever page elements are chosen, this is what lcp considers.

  • Images
  • H1
  • Blocks of text that are long.
  • Video posters that are interesting.
  • Background images are loaded with the url() function.

What are the causes of low scores for LCP?

  • Slow server response times: Slow server slows the load time and increases the LCP score since it takes longer to render the images on the screen.
  • Render blocking JavaScript and CSS: If JavaScript and CSS are blocked, the content requested will take long before being displayed.
  • Slow resource load times: Images, videos, and other files can also affect load speed and LCP.

Cumulative Layout Shift (CS)

You should make it easy for users to get involved with your links and buttons on your site, and that makes conversions more profitable.

On the other hand, Cls is a measure that measures the stability of a page. It is useful to identify links and buttons that are visible after loading a webpage. It also shows what level of difficulty users experience when they interact with your site.

You will certainly be annoyed if a webpage changes when you are reading it or when you interact with it.

Cls prevents this by letting you know when images or links change after you load a page. You will decrease the bounce rates and the sales and user experience.

Google calculates the score by multiplying the impact fraction (the percentage of the viewpoint that moved) by the distance fraction ( how far the elements moved during the shift ) in order to calculate the standard deviation.

First Input Delay (FID)

FID is a measurement of the time latency. The first time that a user enters a website, e.g., by clicking, by swipeing, or by tapping, and when the page responds.

It is possible for delay to frustrate any online consumer. So it is important that your website is responsive so that people can use it and it can be useful throughout the site.

How to improve the key web vitals.

Now that you have a basic understanding of all the different components of Core Web Vitals, lets look at each metric’s ideal values/scores.

What are the ideal values and scores for essential web vitality?

  • LCP: According to Google, an LCP of 2.5 seconds or less is good. If it’s between 2.5 seconds and four seconds, the site should be improved. Any score higher than four seconds is considered poor.
  • FID: To provide a good user experience, pages should have an FID score of 100 milliseconds or less.
  • CLS: For an excellent user experience, a site should maintain a CLS of 0.1 or less.

How can we improve lcp?

lcp loading time

There are several ways to reduce the LCP that is longer than 2.5 s or 4 s on both mobile and desktop.

Reduce the time when servers are responding and improve the response time from first byte.

Slow servers that respond to your requests are the biggest reason for bad LCP. Before the server replies, check the time that is taken by the first byte.

When you want to consume any web content, your browser sends a request to the server, and ttfb measures how long it takes the browser to receive the first byte of information from the server. If you improve TTFB, you will also improve the response time.

By upgrading to a high speed server, you can reduce the time that your servers respond to you. You are able to contact your web hosting company to discuss all the available options.

Use DNS.

A CDN enables you to reduce the time latency. If your web page visitors are located far from your server, it may take some time for them to receive your files. That should help with both the latency and the round trip time (RTT).

The time that is measured in milliseconds. That is the duration from when a browser sends a request to a server, to when that server replies back.

Therefore, by using a CDN, both time latency and readout will decrease no matter where your users are located.

Deferred using JavaScript.

This is a Javascript file that can cause a low LCP score. You can defer the use of javascript, and it will be processed only after parsing the html document and building the dom tree. Because there is nothing that will prevent the process, the LCP metric will become better.

Remove unneeded JavaScript.

Is it possible to remove Javascript files that are unused? That is another way of eliminating the render-blocking resources. These Javascript files are not used to enable the browser to load other pages. So, this will delay your First Paint for your page. So removing useless Javascript files will have a huge impact on the performance of your pages. To find out about the lists of JavaScript files that have been unused, check the Google Pagespeed Insights report.

So, optimize the images that you have.

In order to improve lcp, you also need to optimize images on your webpages. Ensure that the images load quickly, on both the mobile and desktop devices. Ask your developers to scale down every image to the required size in order to avoid LCP issues.

How can I improve my fid?

fid loading time

These are the best ways to improve the fid score.

Optimize the CSS code.

By downloading and parsing CSS files, you can reduce the impact on FiD. You can also optimize your CSS files by removing unused CSS codes. Or, you can also minify and compress your files.

Ensure that your JavaScript code is optimized.

A Javascript task is able to cause the main thread of the browser to be blocked for an extended duration of time. The most efficient way to reduce the time that JavaScript blocks the main thread is to:

  • By breaking down long work into smaller, asynchronous tasks. To avoid being afraid, keep your tasks under 50ms so that they are safe.
  • Minimize the amount of data that is needed to be processed on the client side.
  • It is possible to explore loading on-demand third-party code, such as tags or analytics. Sometimes, these people block the main thread.
  • Delegate some of the main thread work to web workers. By doing this, you reduce the work that you do on the main thread and improve performance.

You must remove all non-critical third party scripts.

Third party scripts can have an impact on FID. So, you should keep all the third-party scripts on your site to a minimum, in order that your site still has a good value.

How can we improve our CLS?

cls score

Sometimes, layout shifts can be disconcerting and annoying. Here are a few of the best ways to fix your CSS problems.

Reserve space for ads, embedded videos, and iframes.

In this context, ads are typically loaded asynchronously and it is possible for that to happen that there is a shift. So it is necessary to reserve space for them in advance.

In some cases, the ad network does not deliver the ad. If you collapse the container, do not do this because it will cause a layout shift. Instead of a placeholder, use a placeholder.

Optimise font delivery (fout/foit).

If you are not optimizing your fonts, that can also lead to layout shifts.

When a browser requires a font that is not accessible from the web browser, any element that uses the font must not be accessible until the font asset is downloaded completely. It is also known as flashing text that is invisible (Foit).

Browsers stay in this mode until the custom one loads, which is why you get this flash of unstyled text (flout). In order to prevent layout changes caused by different fonts, you should force your site to load fewer font lines.

Size dimensions of media.

It is possible to add height and width attributes to images and videos. So the browser knows how much time to allocate to each video or image before the time has started.

If you do not add those attributes, the next image will be automatically shifted to make room for it after it loads. You can see the dimensions of the picture or video that you uploaded by opening DevTools and tapping through the element.

Disable animated videos.

You can create powerful elements from CSS or JSS. However, they can also cause layout changes. If you must include animations, ensure that those animations are placed in a context and that the continuity from one state to another is maintained. If not, avoid animations.


All in all, core web vitals is what Google uses to determine whether the speed of a URL is affected. Its most important metrics are lcp, fid, and cls. They measure many aspects of user experience. As it is important for the users to experience the website to be able to increase sales and conversions, you should always be trying to improve your score.

It is always important that you use Google Search Console and Pagespeed insights to see how well your pages are performing. If you create these tools, they will accurately reflect how users experience your site. Start optimizing your Web Vitals Score (CWR) to boost your seo.