There are lots of pages talking about the benefits of canonicalization. It is a common agreement that it is just a set of rules in order to have our pages indexed in the most standardized, simplified and optimal way as possible. This would allow us to recollect our Page Rank instead of having it spread among all the possible combinations of writing an URL for a particular page. In this post we will cover some canonicalization cases and their implementations for our IIS server running ASP.NET.