Core Web Vitals: A Considerable Metrics Impacting Results From June 2021

Core Web Vitals: A Considerable Metrics Impacting Results From June 2021

SEO is evolving continuously and it is going to have a tremendous impact on website traffic. The impact of Core Web Vitals can be seen from June 2021 onwards. The results may be a huge drop in traffic or if you’re working on your website according to these parameters before it came into impact, then you may experience positive results.

Here’s the basic what Google look on a website and what spiders extracts:


Parameters of Core Web Vitals

Now let’s look into the Core Web Vitals that are about to be considered with June’s Google Algorithm update. It’s better to be prepared priorly instead of the algorithm has a negative effect on the website.

Page Experience Signals

There are 7 elements which are in Google’s eye:

  • Loading
  • Interactivity
  • Visual Stability
  • Mobile Friendly
  • Safe Browsing
  • No Intrusive Interstitials

Let’s dive into 4 secondary web vitals which are preferred by Google in the upcoming algorithm update first:

No Intrusive Interstitials

The impact is related to mobile devices only as Google is now considering the pop-ups or interstitials i.e ads covering the web page as a bad factor. These obstructing elements sometimes help users to get conversions, subscribers, impressions, or even potential clients. But for some users, it’s really irritating. So Google has decided to consider it as web vitals and will not permit to continue these pop-ups once the update is rolled out completely.

Safe Browsing and HTTPS

These 2 factors are as important as the others. SSL is now very much in the eye of Google and now is considered as web vital. SSL or HTTPS is a must-have parameter in order to build a trust factor between your website and the visitors by encrypting data or information while transferring. 

Another important reason to use a secured layer is to keep websites safe from phishing attacks. Also, it offers protection from malware and keeps away hackers as well. So, to ensure the security of visitors’ data, Google has made Safe Browsing and HTTPS another important parameter now.

Let’s Read – Guide for Local SEO

Mobile Friendly

Google loves to offer users an amazing experience. So, with the evolution of technology and smartphones, Google is rewarding mobile-friendly websites that don’t degrade the experience of visitors as well as are compatible with all the devices without overlooking any functionalities.

Instead of having a responsive website only in the current time is not enough. We need to add other metrics of interactive websites as well with responsiveness. The reason behind is the audience now prefers to use smartphones instead of desktop. 

An engaging website is considered to have 

  • Amazing design that attracts users
  • Loading speed must be fast
  • Must have great features
  • Great user experience in terms of easy-navigation
  • Must be easy to find a call to actions

Now we have seen the web vitals till now. Let’s move ahead towards the core elements.

What are Core Web Vitals?

The 3 elements are the most important ones that Google has considered as crucial. 


Loading – Largest Contentful Paint (LCP)

The amount of time taken by the main content to be displayed on the screen in order to become visible to the readers. The metrics calculate the amount of time taken for a page to get load properly. If the images or javascript or any other element is making your website slower which is considered as a bad user experience, then you need to improve before Google rolls out the update. 



  • Uncompressed images
  • High server response time
  • Javascript in bulk

Point to be Considered

  • Google wants your sites’ LCP must be less than or equal to 2.5 seconds.

How to Check Largest Contentful Paint Web Vital?

Initially, when analyzing LCP core web vital, you need to determine what type of parameter or element it is? Find out if it’s an image or javascript or a video or server. To find out the reason, you need tools like GTmetrix or Google’s PageSpeed Insights

How to Improve Largest Contentful Paint Core Web Vitals?

Depending upon the issue countered, you need to find the solution. But some of the common issues we face are – server response time is too high, or images aren’t optimized.

Solution for these common issues:

  • Switching your hosting company
  • Try using CDN’s that will help heavy content like images load quickly
  • Use tools to compress images and optimize them properly
  • Remove unwanted javascript and CSS
  • Setting up proper caches

Interactivity – First Input Display (FID)

The amount of time taken to load the content and display it to the user in order to prepare it for the user’s First Input Delay. The difference is calculated by when we enter a page and when we can perform the first act while the page can still load. For instance, entering something in a search bar, ticking a checkbox, etc, Google wants to see how quickly a site responds to the event.



  • 3rd party plugins
  • 3rd party codes

Point to be Considered

  • Google wants your web page for their First Input Display to respond in less than 100 milliseconds.

How to Check and Improve First Input Display Core Web Vitals?

Again at the first step of analyzing FID core web vital, you need to determine the reason. You need to dive into the source code and the waterfall. The waterfall will describe the order of the elements being loaded and their time. For this waterfall report, you need GTmetrix.

Some of the solutions:

  • Javascript execution time must be reduced
  • Usage of web worker that will help developers to load large tasks in the background
  • Usage of small tasks and breaking up large ones in order to stop overlap loading of elements
  • Making link clicks immediately visible by optimizing the webpage for interaction

Visual Stability – Cumulative Layout Shift (CLS)

The process of shifting the elements within the webpage while loading or when a user interacts. This can be the unspecified images dimensions or fonts or anything. It is the thing that the user is clicking somewhere else and got clicked somewhere else. 


  • Adding elements at later stages on the webpage and making it live without testing
  • Adding embedded banners or ads at later stages

Point to be Considered

  • Google doesn’t want your web page elements or layout to be shifted in entire space more than 0.1 parts

How to Improve the Cumulative Layout Shift Core Web Vitals?

At the first step of analyzing CLS core web vital, you need to check out if you’re running ads or not. Additionally, you need to figure out the sticky headers and other elements as well.

Some of the solutions:

  • Start using image size attributes.
  • Don’t keep the ad space free. Upload something there if right now ads aren’t running.
  • If you run ads, do them statically.
  • Don’t use animation of elements. Just disable them but you can load them
  • Say goodbye to the logo shrinking effect while scrolling the pages
  • Sticky headers must be disabled in order to control the up and down movement of content

So, what are you waiting for?

Figure out the issues of your website or your client’s website, and fix them according to the Core Web Vitals as Google is going to roll out the update in 2021 itself. So, being on the safer side, fix all the issues before Google’s update harms your website. Keep walking on the path of organic success without interruption. Just get in touch with me and I’ll fix your website if you are new to these terms and fixing criteria.

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