I have recently installed W3 Total Cache and my site runs a lot faster now. Well, the causality is not that direct, but the plugin opened my eyes for what other plugins were wasting ressources and what dynamic parts on the site were useless eye-candy.
NOW, I have a pretty decent result compared to earlier, BUT two problems left.
Number one deals with cache expiration on images.
Number two has to do with the very structure of my site: there is an elaborate internal area, that is managed using the "User Access Manager" by gm-alex.de. Fortunately, basically this does not interfere with W3 Total Cache.
Yet, since a lot of users are logged in users, I wanted to allow caching for these, too. Made some exceptions for dynamic pages, enabled, and I thought I am settled. Until, a few hours later, I was shocked to see that users, who are not logged in, get a logged in Home Page, and some of the internal sites can be access from there as well. I have an entirely (almost) different menu for logged-in users, so this is not acceptable.
All I was left with: disabling caching for logged-in users.
Is there any chance I can have sort of a parallel cache structure for logged-in users, that is only shown to logged-in users (yet the same to all of them)?
Thanks a lot in advance!