piwik is a Web analytics software. It gives interesting reports on your Web site visitors, your popular pages, the search engine keywords they used, the languages they speak, and much more. It aims to be an alternative to Google Analytics.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.