The various analytical options and filters are a great resource

Piwik is a great alternative to Google Analytics if you need something to run on your own servers. It also helps to analyze traffic more closely by turning on features to track ip addresses. This allows for closer analysis of activity on your website. I am most impressed by Piwiks price (free), the ability to easily install and upgrade and the ability to customize it for specific purposes. There are multiple ways to gather stats from javascript on web pages to images on the pages. Piwik is very easy to install on most web server rental sites. It works very well with any of the cloud services like AWS.

Piwik is open sourced and we can install it inside our domain.