Get the Whitepaper called Web Application Finger Printing – Methods/Techniques and Prevention. This paper discusses how automated web application fingerprinting is performed, the visible shortcomings in the approach, and then discusses ways to avoid it.
You can download it from the following link: https://packetstormsecurity.com/files/download/103122/webappfingerprint.pdf
Source: https://packetstormsecurity.com/files/103122/Web-Application-Finger-Printing.html