WP Super Cache is installed properly and you have followed the instruction in readme.txt file carefully, but it won’t cache 🙁

First of all, make sure you have followed the instruction carefully. Starting from “Installation” section to “Troubleshooting” provided by the readme.txt

If the plugin still won’t cache, check your template specifically the footer section/file. Make sure there is a closing HTML tags at the last line. If there isn’t, add the following to the end of it:

Good luck!

Note: WP Super Cache is a static caching plugin for WordPress. It generates html files that are served directly by Apache without processing comparatively heavy PHP scripts. By using this plugin you will speed up your WordPress blog significantly. [taken from the developer site]

Visit developer site here.