Tutorial

What is Cumulative Layout Shift CLS? How it impacts SEO?

The web vitals are important for a page to rank in the search result. Cumulative Layout Shift or CLS is also one of them. This is one of the common errors in the Google Search Console.

Cumulative Layout Shift
Cumulative Layout Shift

This tutorial article will talk about what this CLS is and how it impacts the user experience. You can also learn how to eliminate CLS.

What is Cumulative Layout Shift?

To address an issue, we’ve to understand what the actual problem is. As the name suggests Layout Shift, means something is shifting.

As you already know, Google’s focus is always the user experience. That means, the object that is shifting, spoiling the user experience. This problem is due to shifting in the layout of the webpage.

Before and After CLS
Before and After CLS

In the above image, you can see the change in layout behavior in its lifespan. Initially, the content WordPress appeared near the top, and later it shifted to the bottom.

This layout change may be due to ads or images not properly declared in the web page’s CSS file.

How it impacts Search Engine Optimization?

Cumulative Layout Shift disturbs the user experience that may lead to increase bounce rate or pogo-sticking.

Also, the Google search console calculates the total CLS of the webpage during its lifetime. These vital web factors will directly impact page SEO from May 2021. Timing for bringing page experience to Google Search.

The vital web consists largest contentful paint, First Input Delay, Cumulative Layout Shift (CLS). All these factors will be enforced as search engine ranking factors in the near future.

As you already know, the best user experience is one of the major parts of SEO of a webpage.

How to Improve the Cumulative Layout Shift Score?

CLS score can be as low as 0 and can be very high. A website CLS can be checked by performing Google Pagespeed Insights Test.

The zero (0) CLS score means that the site is stable. This score must be near to 0, if the score increases, stability decreases. Google categories this score into

  • Best Practice – CLS score 0 to 0.1,
  • Needs improvement – Score between 0.1 and 0.25,
  • Poor – CLS above 0.25. 
Cumulative Layout Shift

The following practices can be used to achieve a low CLS score.

  • In above the fold, don’t use dynamic contents.
  • Try to declare content size in the CSS, so that content can reserve its layout structure.
  • Try not to load the Adsense or other ads above the fold section of the webpage.

I hope you liked this article on Cumulative Layout Shift CLS. If you’ve any feedback, doubt, or query, please ask in the comment section provided below.

Ashok Kumar

Ashok Kumar working in the Search Engine Optimization field since 2015. And worked on many successful projects since then. He shares the real-life experience of best SEO practices with his followers on seoneurons.com. You also can learn Advance level SEO for WordPress, Blogger, or any other blogging platform. Stay tuned.

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