I am trying to set up a secondary azure website in a different subscription. When creating the Custom Hostname for the new site location, I am forced to validate the hostnam
There is documentation for this exact scenario: https://docs.microsoft.com/en-us/azure/app-service/app-service-custom-domain-name-migrate
You can create a TXT record with host:
awverify.register.tourofmargaretriver.com
and value:
cyclingeventuresregistration-production-webapp.azurewebsites.net
This verifies domain ownership without directing traffic to it.