URL Normalization for Destination Lists
URL filtering conforms to URL normalization standards. Certain guidelines must be followed to ensure that the URL you are entering is what you want to block or allow. These can sometimes mean that the way a URL is displayed in the browser's address bar is not how it should be specified in a destination list. This is not done automatically. You must format the URL using the guidelines listed here for it to be blocked or allowed as intended. For guidelines, see URL Normalization.