You can use CSS to identify fonts and feature detection like Modernizr to uniquely identify browsers and users. Track clicks, mouse over, language, screen size,

You can use CSS to identify fonts and feature detection like Modernizr to uniquely identify browsers and users. Track clicks, mouse over, language, screen size, time spent can be calculated with animations, pretty much anything you would do with javascript except canvas fingerprinting. The big advantage of this is that you can still track and uniquely identify people even if they turn off cookies and javascript.