How to Enable GZIP Compression to Speed Up WordPress Sites

enable gzip compression

The easiest way to speed up your WordPress site is to eliminate all its unwanted resources. The second easiest way to speed it up is to compress all its wanted resources. Enabling GZIP compression on your web server is one of the simplest and most efficient ways to achieve that.

All modern browsers include support for GZIP compression by default. However, to serve the compressed resources to your users with no hiccups, you must configure your server properly.

In this post, you’ll learn the basics of data compression on the web, what GZIP compression is, its various benefits, and how you can use it to speed up your WordPress sites on different server setups.

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The easiest way to speed up your #WordPress site: get rid of unwanted resources. ✅ The 2nd easiest way: Compress all wanted resources. ✅ Learn to do this quickly with GZIP compression ?Click to Tweet

The Basics of Data Compression on the Web

Data compression on the web is the process of reducing the size of data transmitted by websites. Depending on the data type—text, images, stylesheets, scripts, fonts—there are various ways to go about compressing data.

The main components of a webpage

For instance, minification of HTML, CSS, and JavaScript is a simple way to reduce the amount of data sent by browsers. Here, the minifier compresses the text by removing unnecessary characters such as comments and whitespaces from the source code.

In the example below of a simple HTML document, there are three content types: HTML markup, CSS styles, and JavaScript code.

Each content type has unique syntax and semantics. Overall, this HTML document has 357 characters in total.

<html>
<head>
    <style>
    /* kinsta-banner is used on the homepage only */
    .kinsta-banner { font-size: 150% }
    .kinsta-banner { width: 75% }
</style>
</head>
<body>
    <!-- kinsta banner START -->
    <div>...</div>
    <!-- kinsta banner END -->
    <script>
    kinstaScripts(); // random scripts used on the page
    </script>
</body>
</html>

The above code is easy to read and follow. It’s ideal for development. However, it’s unnecessary for the browser to read comments and have perfectly indented tags. A smart compressor can analyze this document and remove all the unnecessary bits from it.

<html><head><style>.kinsta-banner{font-size:150%;width:75%}</style></head><body><div>...</div><script>kinstaScripts();</script></body></html>

After

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This article was written by Salman Ravoof and originally published on Blog – Kinsta Managed WordPress Hosting.

Disclosure: Some of the links in this post are "affiliate links." This means if you click on the link and purchase the product, We may receive an affiliate commission.

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