This is an old revision of the document!
How to check page load speed through Chrome or Firefox developer tools?
There are many ways to run a website speed test to do a full page performance check, including some online tools, but the easiest way is to use your Chrome or Firefox developer tools right there on your desktop.
Enable cache first and ensure to see "X-LiteSpeed-Cache: hit" header before any page load test
LSCache and plugins are the ultimate solutions to dramatically improve your website page load time and make it fly. Make sure you following our wiki to enable cache first. Installing the LiteSpeed cache plugin or click “enable” button within LiteSpeed cache plugin does not always mean the cache has been enabled. You will need to check header through browser developer tools.
For example, Visit your website using Chrome, then Chrome menu→ More tools → Developer tools → Network, or simply use the shortcut “Ctrl+Shift+i” to bring it up. The test page may contain many requests and you can just click your main domain to check the header.
https://developers.google.com/web/tools/chrome-devtools/network-performance/reference