This message indicates that the plugin was installed by the server admin. The LiteSpeed Cache plugin is used to cache pages – a simple way to improve the performance of the site. However, there is no way of knowing all the possible customizations that were implemented. For that reason, please test the site to make sure everything still functions properly.This message indicates that the plugin was installed by the server admin. The LiteSpeed Cache plugin is used to cache pages – a simple way to improve the performance of the site. However, there is no way of knowing all the possible customizations that were implemented. For that reason, please test the site to make sure everything still functions properly.