Are they somehow related to google cache?
I understand that they speed up your site, but I don't understand how this is done. Only way I can relate it in my mind is to google cache which appears to be a snap shot of your site, rather than individual files (I honestly have no idea what I'm talking about right now).
Also, is the "W3 Total Cache" plugin good for this? I saw someone recommend it online.
From what I understand about caching, it somehow reduces the size of your site. But I don't understand how this works. If I install a plugin, are they easy to understand/use? Do I need to look out for a certain one if I have no idea what I'm doing?
Caching has always confused me but I'd like to make my site quicker if possible.
Thanks guys - Red