The ASDK hosts all of its components to its own private network.
The easiest way to access the website is to RDP into the ASDK VM. You can also configure the host computer to forward requests into that network, but Setting up a NAT into the ASDK private network can be quite complicated, and is a purely Windows Server configuration set up on the ASDK host computer. The ASDK is made for proof of concept deployments, and should not be used for Public Websites. Even getting it working hosting a website on a Network will be complicated.