google – Twitter can't resolve the address

There is a website that is distributed through Azure CDN. The CDN endpoint was used as the destination of the CNAME entry for www.< EXAMPLE >.com with the use of Google DNS. The website's www address works fine with one exception, Twitter cannot resolve the address https://www..io, therefore, cannot read meta tags to generate the call twitter card. In the twitter validation page When you try to validate the previous address, you will return the following message:

ERROR: The page could not be retrieved because the search engine cannot resolve the address.

However, when you enter the CDN endpoint address (https://EXAMPLE.azureedge.net) in the same validator, then everything is fine and Twitter can read the content of the website. Also, the debugger to share on Facebook does not complain.

Below you can see dark dig departure for www.EXAMPLE.io domain.

www.EXAMPLE.io.     60                      IN CNAME    EXAMPLE.azureedge.net.
EXAMPLE.azureedge.net. 1799                 IN CNAME    EXAMPLE.afd.azureedge.net.
EXAMPLE.afd.azureedge.net. 299              IN CNAME    afd.t-XXXX.t-msedge.net.
afd.t-XXXX.t-msedge.net. 200                IN CNAME    t-XXXX.t-msedge.net.
t-XXXX.t-msedge.net.    43                  IN CNAME    XXXXXXXXXXXXX.ctrl.t-XXXX.t-msedge.net.
XXXXXXXXXXXXX.ctrl.t-XXXX.t-msedge.net. 223 IN CNAME    standard.t-XXXX.t-msedge.net.
standard.t-XXXX.t-msedge.net. 236           IN A        1.2.3.4

What can cause the problem and how can I solve it?