Very fast and reliable for some websites & themes

If Litespeed is compatible with your website, plugins and theme combination, this caching plugin (with your server environment running Litespeed) is very fast and reliable. After tweaking the settings, of which there is a comprehensive set of options, our website used to be 2.5Mb in size and a load time of around 1.5s which was reduced to 800Kb and an average load time of 275ms testing on tools.pingdom.com. We have tried numerous other good caching plugins, but Litespeed and Litespeed Server blow most others away. If you are hosting a high-traffic website, this saving on server overhead and response times has been a worthwhile investment.