How to Remove Unused CSS Safely from WordPress Website in 2021

Remove Unused CSS

Your website has unused CSS that affecting your website speed? Slow Websites can harm your rankings and user experience. While checking Website Speed on Google Pagespeed Insights, you must have seen the “Reduce Unused CSS” error.

Google’s Core Web Vitals are mainly standing for Website Speed and also ranking factors of Google. So consider removing Unused CSS from your WordPress website.

“Delete unused CSS” is an essential step in website front-end optimization. If we don’t use tools, we can’t complete this step manually. It’s too time-consuming and easy to miss. At present, WordPress does not have a convenient tool or plug-in to remove unused CSS, which has caused many friends to omit this step directly when optimizing WordPress performance.

In this article, we will learn how to find Unused CSS and How to Remove Unused CSS from WordPress Websites.

What is Unused CSS?

CSS files are used to store information about how a website is designed and include instructions that affect fonts, colors, widths, and more.

CSS file that’s not in use is called Unused CSS. Your WordPress theme comes with lots of CSS files. In that file, Unused CSS is also coming.

You may have added a site search box on your website and the associated styles were included in the stylesheet. Later, if you decide to remove that search box, the styles may still exist in your CSS, even though they are not being used anywhere.

Unused CSS files increase your website size, which becomes the reason for a slow website.

How to Identifying Unused CSS?

This is how you can easily find all the unused selectors in your CSS files in Google Chrome:

  1. Open any page of your website within Google Chrome and then launch the Developer Tools available from File -> Tools -> Developer Tools.
  2. Click on the Audits tab within Dev Tools and select the ‘Web page performance’ and ‘Reload page and audit on load’ options. Now click on the “Run” button to begin the CSS auditing process.
  3. On the results page, expand the “Remove unused CSS rules” group and select the CSS files that are linked from your site. You can ignore CSS files added by social plugins and widgets as you have no control over them.

Here you will get an ordered list of all the styles that are defined in the CSS file not used anywhere on the current page.

You can Find Unused CSS here (see screenshot), now you can easily remove these Unused CSS code files by going on cPanel.

Unused CSS

Still, confused?

How to Remove Unused CSS?

After finding unused CSS, the next step is to remove Unused CSS. don’t know how to remove Unused CSS from WordPress Website?

Look at this example: If you find a CSS code file at this destination – wp-content/Plugins/ampforwp/css/style.css. Then you have to go cPanel > File Manager > wp-content/Plugins/ampforwp/css/style.css. And remove that code that showing on developer tools.

If your site is built with WordPress consider minimizing or changing the number of WordPress plugins that load unused CSS on your page. To identify plugins that add strange CSS, try running code coverage in Chrome DevTools.

You can identify the theme/plugin responsible for the stylesheet URL. Look for plugins that have many stylesheets listed that have a lot of red in their code coverage. A plugin should only enqueue a stylesheet if it is used on the page.

Conclusion – We can help

Now check your website speed and see Something changed? Still, showing “Reduce Unused CSS”? If yes, then don’t hesitate to share your questions in the comment box.

Also if need to remove unused CSS and you don’t know the technicality of fixing it, We’ll do this for you.

Our professional developers’ team will fix CWV (Core Web Vitals) errors significantly for our clients for the highest Website Speed ​​and Performance. So drop us a message or See Our Affordable Pricing, and we’ll fix all Core Web Vitals errors for you.

Hopefully, this article on How to Remove Unused CSS from WordPress Website is useful and helps you in Optimising your website for maximum speed.

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