Use an Azure SSL certificate with Intercom help center

Question

I linked a subdomain help.mydomain.com of mydomain.com to my Intercom help center with a CNAME. Everything is working fine over HTTP.

I would like to use the App Service Certificate I have in my Azure subscription to make this subdomain work over HTTPS. The point here is that I don't have any webapp to link to the subdomain and the certificate since it is just a redirection.

I read the following documentation on the Intercom website but it does not help with Azure : https://developers.intercom.com/installing-intercom/docs/set-up-your-custom-domain?showHidden=f2cb6

How to implement this using Azure ?

Answer 1

Ok, so I got an answer and it works using Azure CDN. Application Gateway was very hard, I was able to do redirects, but from what I saw it doesn't do DNS masking, so it won't do what you want and keep your custom domain.

Now to get this working with Azure CDN.

• Create a Azure CDN Profile I selected Standard Microsoft CDN (Verizon Premium didn't work)
• Select Create new CDN Endpoint now, Origin Type->Custom Origin ; Origin Hostname-> custom.intercom.help
• Now on that CDN profile-Endpoint you made select +Custom Domains.
• Add a CNAME record to your Azure DNS host with help.yourdomain.com -> help-xxxx.azureedge.net
• Now add the Custom domain and it should allow you to use help.mydomain.com
• Then enable HTTPS on you custom domain (this will take an hour or so)

Note the first time I tried this, it failed to create the SSL certificate for some reason. the next time it worked no problem, maybe just an azure failure.

Verzion just didn't work, not sure why.