You will need a server with PHP to run Piwik. However, the tracking code is a simple JavaScript tag, which can be added to any webpage written in Python, Jsp, ASP, .NET, etc. For example, the same instance of Piwik can track data from a PHP website, a simple HTML website and a complex JSP application, simply by copy and pasting the JavaScript tag into the desired pages. If you do not have a server with PHP enabled, we have partnered with high quality web hosts who provide a pre-loaded Piwik for a small fee. See the Piwik Hosting page.