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I use google analytic to track my forum’s traffic. I also use Awstats and webalizer to track my site’s traffic. Both of these scripts are generally found in your site’s server’s cpanel.
I do not think there is anything better than Google Analytics. It is free and you can use multiple websites for traffic tracking from the same account.
Heard of them before and it's a great thing that they offer analytics without Google tracking but, when you look at the offerings you will get overwhelmed by the sheer cost if you want to self-host it. That's not to say that their charging is wrong but it is something you have to look into in whether to go for self-hosting or the hosted.