Allow GZIP Compression in WordPress (three Methods)

Would you like to enable GZIP compression in WordPress? GZIP compression makes your website faster by compressing the data and delivering it quickly to the user's browsers.

A faster website improves the user experience and brings more sales and conversions to your business.

In this article, we're going to show you exactly how you can easily enable GZIP compression in WordPress.

What is GZIP Compression?

GZIP compression is a technology that compresses data files before they are sent to users' browsers. This will reduce file download time, which will make your website faster.

As soon as the compressed data arrives, all modern browsers automatically unzip the compressed files and display them. GZIP compression does not change the appearance or function of your website.

This will only make your website load faster.

GZIP is supported by all major web browsers, server software and all of the best WordPress hosting companies.

How does GZIP compression work?

Gzip compression uses compression algorithms that work for website files like HTML, CSS, JavaScript, and more. When a user requests a page from your website, the algorithm sends the output back in a compressed format.

Depending on the data size, compression can reduce the file size by up to 70%.

For this reason, most website speed test tools like Google Pagespeed Insights recommend enabling gzip compression. These tools also display a warning if gzip compression is not enabled on your website.

Pagespeed Insights

Note: By default, Gzip compression does not compress images or videos. To do this, you need to optimize images for the web on your WordPress site.

Why do you need to enable GZIP compression in WordPress?

Simple raw data takes longer to download, which affects the speed of your page loading. Having multiple users arriving at the same time will further slow down your WordPress website.

GZIP compression allows you to transfer data efficiently, increase page load times, and reduce the burden on your website hosting. This is an essential step in improving your website's speed and performance.

Now you might think that GZIP sounds very technical and complicated. However, there are plenty of WordPress plugins that allow you to add GZIP compression to your WordPress website with ease.

In some cases, GZIP may already be enabled by your WordPress hosting company.

Bluehost, an officially recommended WordPress hosting provider, automatically enables GZIP compression on all new WordPress sites.

To test if GZIP is enabled on your site, simply go to this GZIP tester and enter your site's url. If GZIP is working on your website, you will see the message "GZIP is enabled".

Use a GZIP test tool to determine if GZIP is enabled on the specified website

If you need to add GZIP compression yourself, you can use one of the following methods to do so:

Enable GZIP compression with WPRocket

WP Rocket is the best caching plugin for WordPress. It's incredibly easy to use and it enables all of the major speed optimization features, including GZIP compression.

First of all, you need to install and activate the WP Rocket plugin. For more information, see our step-by-step guide on installing a WordPress plugin.

Upon activation, your license key should be activated for you automatically. You can check this out by going to the Settings »WP Rocket Page in your WordPress administrator.

You should see a message informing you that WP Rocket is up and working.

The message indicates that WP Rocket is active and working on your site

WP Rocket will automatically enable GZIP compression for you if you are using an Apache server. Most WordPress web hosting providers use Apache for their servers. You don't need to take any additional steps.

For a breakdown of all of WP Rocket's features, see our guide on installing and setting up WPRocket.

Enable GZIP compression with WP Super Cache

WP Super Cache is a free WordPress caching plugin. It's also a great way to enable GZIP compression on your WordPress site.

First of all, you need to install and activate the WP Super Cache plugin. For more information, see our step-by-step guide on installing a WordPress plugin.

After activation, go to Settings »WP Super Cache page» Advanced in your WordPress dashboard. Then just check the box next to "Compress pages so they're served faster to visitors".

Check the box to compress pages

You will then need to scroll down the page and click the "Update Status" button to save your changes. WP Super Cache now enables gZip compression on your WordPress website.

Enable GZIP compression with W3 Total Cache

W3 Total Cache is another great WordPress caching plugin. It's not quite as beginner-friendly as WP Rocket, but there is a free version. This makes it a good option when the cost of building a WordPress site adds up.

First you need to install and activate the W3 Total Cache plugin. For more information, see our step-by-step guide on installing a WordPress plugin.

Once activated, GZIP compression will be automatically activated on your website. You can check or change this by going to the Performance »General Settings Page in your WordPress dashboard.

On this page, scroll down to the browser cache and make sure the Enable box is checked:

Make sure the Browser cache check box is selected

Don't forget to click the "Save All Changes" button whenever you make changes.

Check that GZIP is enabled on your website

After enabling GZIP, you may find that your web pages load a little faster. However, if you want to check that GZIP is running, you can just use a GZIP checking tool.

Use a GZIP test tool to see if GZIP is enabled on the website you specified

We hope this article has helped you learn how to enable GZIP compression in WordPress. You might also want to check out our ultimate guide to speeding up WordPress and check out our 27 proven tips for increasing your website traffic.

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