discussion Guide Plesk Installing LiteSpeed Web Server on Plesk Panel – Step-by-Step Guide 2025

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⚡ Installing LiteSpeed Web Server on Plesk Panel​

If you want your websites to load faster and use server resources more efficiently, you can replace Apache with LiteSpeed Web Server.
LiteSpeed offers significant performance improvements, especially for high-traffic WordPress, forum, and e-commerce sites.

Installing LiteSpeed through Plesk Panel is simple and can be completed in just a few steps.

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🔧 Installation Steps​

1. Log in to Plesk Panel with a root-privileged account.
2. From the left menu, click on Extensions.
3. In the search box at the top-right corner, type “litespeed”.
4. Find the LiteSpeed Web Server extension in the results.
5. Click Install to begin the setup.

⚠️ During the installation process, your websites might experience short-term access interruptions.

Once the installation is complete, you’ll need to activate LiteSpeed as your web server and review the default configurations.
After this step, Plesk will begin using the LiteSpeed engine instead of Apache.

⚠️ LiteSpeed is a paid software, and this guide demonstrates installation of the trial version.

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⚙️ Enabling LiteSpeed in PHP Settings​

After installing LiteSpeed, you must ensure your PHP handler is compatible with it.
To do this, switch your PHP mode to FastCGI application.
Follow these steps to configure it properly:

1. In Plesk Panel, go to the Subscriptions section from the left menu.
2. Select the domain you want to configure.
3. Click on PHP Settings.
4. Under "PHP handler type", change it to "FastCGI application".
5. Click Apply or OK at the bottom to save changes.

🔄 This adjustment ensures optimal PHP performance with the LiteSpeed Web Server.

 

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Litespeed is a paid software, and in this article, we are installing the trial version. You will need to purchase a license separately.