Bundling and minification are two new features that have been added to ASP.NET 4.5. Both are
designed to improve the performance of your site by minimizing the number and size of your client
CSS and JavaScript files. With bundling, the ASP.NET run time combines one or more CSS or
JavaScript files into a single request. This minimizes the network overhead as the browser needs to
make fewer requests. Minification works by removing irrelevant code from these files. Combining
these two techniques greatly enhances the performance of your site.