I cannot seem to add a wildcard domain to an Azure App Service. I know I have done this in the past but I think the portal has changed.
There are several examples online of how to do this but all of them state you can enter a domain as "*.mydomain.com" which does not work thru the Azure portal.
I go into the my app's App Service page-->Custom Domains-->Add Custom domain. I select "All other domain services" and the Domain field appears. I want to enter *.mydomain.com but the portal will not allow an *.
How do you add a wildcard custom domain. I will have hundreds of subdomains in a multi-tenant app. I already have the wildcard cert and the CNAME and TXT records setup. Thanks
To add a Wildcard Domain
refer the steps from this MS Document.
Visit your Azure Web app > Custom Domains > For Wildcard domain to get accepted, Select Add certificate later option in TLS/SSL certificate > In domain add your wildcard domain like here:- *.contoso.com
Now visit your Domain registrar site and in the DNS records Add the below records for the Wildcard domain to work properly:-
In your DNS Record
add the above CNAME
and TXT records
:-
Type- CNAME ,
Name- * ,
Data- webappname.azurewebsites.net,
Type- TXT,
Name- asuid,
Value - A189264E6xxxxx833044629E67A8D1AC75146808B3
Reference MS Document.