WP html cache is a plugin to accelerate the speed of your wordpress, by generating real html cache file, WP html cache will automatically generate rea
htm (.htm)or html (.html)or directory (dir/)must be the end of the permalink.
In the Settings → Permalinks panel (Options → Permalinks before WordPress 2.5), you can choose one of the "common" structures or enter your own in the "Custom structure" field using the structure tags.
For more help see the Permalinks,
** Do I really need to use this plugin? **
** How can I tell if it's working? **
WP-html-cache adds some stats to the very end of a page in the HTML, so you can view source to see if there any codes like ""
** Do you cache other pages such as cat ? **
YES.this plugin can cache home , single, tag, cat,