Our servers run the LiteSpeed web server, which has its own built-in caching. The free LiteSpeed Cache plugin connects WordPress to it, so your pages load faster and your website uses far fewer resources.

Installing the plugin

1. Log in to your WordPress dashboard.
2. Go to Plugins > Add New Plugin.
3. Search for LiteSpeed Cache, then click Install Now and Activate.

Caching is switched on as soon as the plugin is active. For most websites, that's all you need to do.

Choosing a preset (optional)

The plugin includes ready-made groups of settings. Go to LiteSpeed Cache > Presets:

• Essentials is the safest choice for most websites and doesn't need any extra sign-up.
• The more advanced presets turn on extra optimisation and need a free QUIC.cloud connection. They can conflict with some themes and plugins, so test your website carefully after applying one.

Use one caching plugin only

Running two caching plugins at once can cause errors and out-of-date pages. If you have another caching plugin, such as WP Super Cache, W3 Total Cache or WP Rocket, deactivate and delete it before you activate LiteSpeed Cache.

Clearing the cache

If a change to your website doesn't show, clear the cache. Hover over the LiteSpeed Cache icon in the admin bar at the top of your dashboard and click Purge All.

Checking that it's working

1. Log out of WordPress or open your website in a private browser window.
2. Open your browser's developer tools (F12 on Windows or Cmd + Option + I on a Mac) and go to the Network tab.
3. Reload the page twice and click the first item in the list.
4. Under the response headers, look for x-litespeed-cache: hit.

Logged-in users always see uncached pages, so you'll only see hit when you're logged out.

Online shops

The plugin works with WooCommerce and automatically avoids caching the cart, checkout and account pages.

Something looks broken after changing settings? Turn off any CSS or JavaScript optimisation options you've switched on, then purge the cache. Page caching on its own rarely causes problems.

We'll do our best to help troubleshoot WordPress, plugins, themes and other third-party software, but for in-depth help, please contact the software's developer or its official support forum.