title: Why can't I use a port with my website domain name?
body: <p>I have a registered domain name, www.aaaDomain.com, assigned to ip address xx.xx.xx.xx . I set up my site on IIS8 to use the ip address xx.xx.xx.xx and port 8020 for my website. I can connect to the website when I type xx.xx.xx.xx:8020 in a browser but I cannot connect to the website when I use www.aaaDomain.com:8020 
  Also, I have another website on this same server as my Default website. When I type just the domain name without the port number, my default website comes up (because DNS does not allow adding port numbers) just like when I type in the ip address without the port number.
  What am I doing wrong?
  Here is what my site binding looks like on IIS8.
  <a href="https://i.stack.imgur.com/McNZk.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/McNZk.jpg" alt="enter image description here"></a></p>