How to manage url in mvc?

You want to create subdomains for the users, dynamically. Please read the following guides to learn more about creating subdomains, dynamically, which means that you would be able to map the domains to a dynamic variable to load the data from it. 

 

http://blog.lukesampson.com/subdomains-for-a-single-application-with-asp-net-mvc

http://blog.maartenballiauw.be/post/2009/05/20/ASPNET-MVC-Domain-Routing.aspx

 

Read them, they have introduction and enough explanation about the topic.