Among all the free web site stats analyzer, I think Google analytics is the best solution for your site because of its utility, richness and depth analysis. You are able to make informed editorial, navigational and page design decisions to boost your site’s traffic and effectiveness with the data that Google gives you.
Signup & installation
Google Analytics was launched in 2005; growth was initially slow due to the frustrating waiting list system initiated by Google to avoid over stretching their servers. Now the waiting list has been removed and anybody can sign up to use this great service.
You just need to visit Google analytics and signup for free Google analytics account.
Once your account is set up, to get Google Analytics tracking your site’s page views, drop a snippet of JavaScript onto your site’s pages (much like Sitemeter.) The guide should help you find your way around the new system. You just have to copy paste the JavaScript in the pages you want Google to track.
E.g.