WhatWeb recognises web technologies including content management systems (CMS), blogging platforms, statistic/analytics packages, JavaScript libraries, web servers, and embedded devices.
Content management systems (CMS), blog technologies, analytics packages, javascript libraries, web server versions are just some of the technologies that can be identified with WhatWeb. When you visit a web address in your browser the raw source has many unseen pointers about the server and software that is running on the web site. WhatWeb parses this code and identifies known technologies.
Once an attacker has fingerprinted the technologies in use they can then move onto to exploiting them. By testing your system you can re-mediate and keep your technologies updated.