Piwik是一套基于PHP5+MySQL技术构建的开源网站访问统计系统，前身是phpMyVisites。Piwik可以给你详细的统计信息，比如网页浏览人数，访问最多的页面，搜索引擎关键词等等流量分析功能。此外，它还采用了插件扩展及开放API架构，可以让用户根据自已的实际需求创建更多的功能。
现在官方已经推出 移动客户端(iOS & Android)
Piwik 2.2.2 发布了，改进记录：
#5111 Improve error logging of core:archive cron script
#4510 When adding new annotation calendar not visible ….
#5054 in Visitors - Overview, Action metrics not displayed when report purge is enabled
#4377 sum_daily_nb_uniq_visitors calculations incorrect for some ranges in many API methods
#5034 Piwik will chmod files created in tmp/* 750 instead of 755
#5104 Notify Microsoft App Gallery team when there is a new Piwik version
#4613 Real time map: west coast visitors are not clickable
#5097 Website List - Please Populate FIRST on Load
#5000 Tooltip is unreadable
#5006 MultiSites: On first login,the currencies of the websites aren’t recognized correctly
#5053“Custom segment” instead of real name
#5100 Logo appears stretched and pixelated on IE10+
来自:开源中国社区
