Piwik, also known as phpMyVisits, is a PHP and MySQL application that offers a dynamic and interactive system of web page statistics similar to Google Analytics. It provides real-time data on visitors, including their frequency, entry pages, geographical breakdown, technical configurations, traffic sources, visit duration, and more. The installation process is straightforward - simply upload the files to the server via an FTP client and follow the provided wizard. To start measuring a site, you just need to insert a Javascript code for data collection.

Piwik stands out for its comprehensive range of statistics and user-friendly installation process, making it a valuable tool for website owners looking to track and analyze visitor behavior effectively.