How to test your WordPress Cache
The images above show you how to analyze the effectiveness of your cache. Our previous post on How to make WordPress Fastertalked about caching static content, using Mod Pagespeed, and Nginx. The question becomes, how do you measure the effectiveness of your cache?
Turns out it's fairly easy with Safari. If you look at the two images above, it's fairly self explanatory.
You can access the Activity menu, by clicking on Window in the OS X Menubar, and then choosing Activity.
Remember, minification, compression, cdns are all great, not having to use any of them on subsequent pageloads is even greater. The less work your visitors internet connection has to do, the faster your site will look.
PS: This technique can be used to measure any site, not just WordPress.