I have 10 multisites, each with 20-50 sites in sib-directories.
Although they are on a VPS account, the server is getting taxed pretty hard.
The content of the sites doesn't change, so I think it's a great candidate for a caching option, but it's not clear what my best option is. (W3 Total Cache? WP Super Cache? pros/cons?)
My specific question: in my situation, is there a clear choice, knowing I'm not skilled in the caching world (not even sure if it's pronounced "caishing" or "cashing" :)), and is there an up to date guide on recommended settings for multisite?
Or.. is there a professional you could recommend to look at my setup and make recommendations?
Thanks for any thoughts.