[Azure]Configure Custom DNS Name for Azure Website

To configure custom DNS Name for Azure Website. First, of course, we’ll have to configure CName or A Record in our DNS register.
Say I have a Azure website with its FQDN http://michaeltestdns2.azurewebsites.net/ and I want users to use http://cloudworker.michaeldns.biz instead where michaeldns.biz is my root DNS.
For testing purpose, I’ve setup my GoDaddy as following.

I also setup forwarding as the instruction here.
Then go to Azure Management Portal, click on the website we want to setup. Click “Manage Domain” button in the bottom of the page. And set the following

Note that when trying to setup custom DNS, Azure will check public DNS for the FQDN you are trying to setup (in my case – cloudworker.michaeldns.biz). If Azure cannot resolve the provided DNS Name, the setup will fail.