Is WP-Optimize compatible with others cache plugins like WP Super Cache or W3 Total Cache?

Yes. You cannot use two page caches at the same time, and should not try. However, the WP-O page cache will only be switched on if you choose to turn it on; otherwise, it will have no effect on the site (either cacheing or performance). It is not turned on by default. Thus, WP-O can happily co-exist with other plugins.

(N.B. Also, because of how page cacheing works in WordPress, it is not possible to have more than one turned on at the same time; they might both think they’re turned on, but in effect, only the most recently turned-on will be doing anything).

Posted in: Cache