Webalizer question
 

I never asked this, but I always wanted to know.

Hits Files Pages Visits Sites KBytes

I know what's a hit, I'm not sure what they mean by a file. I kwnow what a page is (pageview right?) , I think a visit is a unique visitor (not sure), and I dont know what the hell is a site! I guess the only thing I'm really sure is the KBytes. So please tell me what you make of those numbers like I'm a 6 year old.