Built using PHP and MySQL. The dashboard is responsive and actually looks pretty good (check out the demo). They even have a iOS and Android app. Maybe your company doesn't want Google knowing their stats, or your company is concerned about your user's privacy with Google tracking your users, this might be a solution for you. Open source repo here: https://github.com/piwik/piwik

Neat little trick to get google analytics tracking on your github repos.

"KDirStat is a graphical disk usage utility, very much like the Unix "du" command. In addition to that, it comes with some cleanup facilities to reclaim disk space."

I was actually looking for a Linux alternative for WinDirStat when to my surprise I found out that WinDirStat was actually based on this Linux app!

"Web analytics is the measurement, collection, analysis and reporting of internet data for purposes of understanding and optimizing web usage."