Our servers have been running the LiteSpeed Web Server for almost six years now and one of the lesser known but most powerful features of it is its caching. LiteSpeed cache is available on our servers although it is disabled on all domains by default. Enabling it globally just isn’t practical or wise because there is a lot of content that doesn’t need to be cached or shouldn’t ever be cached.
LiteSpeed cache can be used to cache your PHP scripts and thus speed up their load time significantly. This can be very beneficial if your site receives consistent traffic although even low traffic sites can see some benefits. The cache can be enabled and configured by means of some mod_rewrite rules in your .htaccess file. Below is a common example that can be used to cache WordPress:
<IfModule LiteSpeed>
CacheEnable public /
RewriteEngine on
RewriteCond %{REQUEST_METHOD} ^(HEAD|GET)$
RewriteCond %{REQUEST_URI} !^(wp-admin|wp-login.php|wp-cron.php)
RewriteRule .* - [E=Cache-Control:max-age=120]
</IfModule>