Websites are created to show on computers and most of the time display improperly on mobile devices.
Even if the website seems to fit the mobile screen, the end user still has trouble reading the information, which is too small, and clicking on text links or buttons that were not designed to be used by fingers.
Often, users have to scroll left-right with their fingers in order to access all the information, zoom in and out for proper reading, and if the site has a Flash image or header, a white space is shown instead!
This is why a separate optimized and simplified mobile website version of the desktop website should be made and shown when users access the domain from a mobile phone.
A mobile website fits perfectly the screen of the phone, navigation buttons are big enough for fingers, and the content’s font size is readable.