The LiteSpeedCache plugin is a MediaWiki extension for MediaWiki sites running on a LiteSpeed webserver. Enable its LSCache feature to speed up page loading, reduce response time, and tremendously reduce server load for MediaWiki sites.

See for more information.


MediaWiki is a free software open source wiki package written in PHP, originally for use on Wikipedia (the free encyclopedia). It is a feature-rich wiki implementation, that uses PHP to process and display data stored in its MySQL database. It is a fairly popular wiki application on the web.


This version of LiteSpeedCache requires MediaWiki 1.25 or later and LiteSpeed Web Server (LSWS) 5.2.3 or later.


wget <nowiki></nowiki>

Unzip the downloaded file with:



  1. Create .htaccess if it doesn't exist, and add the following:
    <IfModule LiteSpeed>
    CacheLookup on
  2. Move the LiteSpeedCache directory to /extensions in the MediaWiki directory
  3. Edit LocalSettings.php in the MediaWiki root directory, and add the following near the end:
    wfLoadExtension( 'LiteSpeedCache' );
  4. Log in to MediaWiki and from the administrator panel, navigate to 'Special pages > Data and Tools > LiteSpeed Cache'.


Edit the page to enable public cache:

Set LiteSpeed Public Cache Enabled to checked and save the page.

Verify Cache Setup

If a resource is served from LSWS cache, the server response header contains X-LiteSpeed-Cache: Hit.

Load the URL and check the headers through the Network tab of the brower's developer tool. You should see something like this:

GET /wiki/index.php/Main_Page HTTP/1.1
Accept	text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Encoding	gzip, deflate, br
Accept-Language	en-US,en;q=0.5
cache-control	public, max-age=2592000
server	LiteSpeed
vary	Accept-Encoding, Cookie
x-litespeed-cache	hit
litespeed_wiki/cache/mediawiki.txt · Last modified: 2018/03/06 15:28 by Lisa Clarke