Map wildcard domain to Azure AppService

Question

I want to map a second level of wildcard domain (i.e. * .api.mydomain.com) to my Azure AppService. I have already created CNAME entry for awverify.*.api.mydomain.com in GoDaddy. But, when I try to add *.api.mydomain.com on Azure portal, it's throwing following error

Failed to update hostname bindings: A CNAME record pointing from *.api.mydomain.com to myservices.azurewebsites.net was not found. Alternative record awverify.*.api.mydomain.com to awverify.myservices.azurewebsites.net was not found either.

How can I map second level of wildcard domain (i.e. *.api.mydomain.com) OR how I can map to wildcard domain with virtual directory (i.e. *.mydomain.com/api) to Azure AppService?

Answer 1

Yeah, unfortunately I just found out myself when trying to migrate off of an older Azure option that this multi-level subdomain problem is not addressed in the new Azure Websites.

However... Speaking of the older Azure option...

An alternative solution is to use Azure's Classic Cloud Service option. We are currently using this and able to utilize as many sub-domain levels as we wish.

Answer 2

Azure does not support multilevel domain names e.g. a.b.example.com and only supports single level domains, although that can be a wildcard