Free certificate - App Service Managed Certificate - will it work for none direct CNAME's?

Marcel Croes (DutchWorkz BV) 6 Reputation points


I have SAAS application with multiple domains pointing to which in turn has a CNAME to my
Right now im getting:

Properties.Canonical Name is invalid. Certificate creation failed unexpectedly for canon

According to other questions relating to this, it has to be pointing directly to

My question is for the long term: Will this be supported in the future? I know it does not work in the preview.

Many thanks!


Azure App Service
Azure App Service
Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
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  1. Philippe Levesque 5,706 Reputation points MVP


    You can map a custom domain with the free certificate already. (

    I think you maybe just miss the option when you manage the custom DNS CNAME, as in that window the custom CNAME would be listed as unsecure. You add the correct SSL binding from there.

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  2. Marcel Croes (DutchWorkz BV) 6 Reputation points

    Hi yagmoth555,

    It does work for a custom domain with a CNAME directly to

    But what i have is: CNAME to -> CNAME to ->

    I'm trying to receive a certificate for, this is where the error occurs and is not supported in the preview

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  3. brtrach 251 Reputation points

    @Anonymous We would suggest you make a request for this feature at the Azure Feedback site. The product group watches this area for improvements and feature requests.

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