Problem with cards after redirect traffic to https with CDN

[davmarlo]

In the past, we could see the cards corretly, but after some infraestructure changes in our site we couldn’t.

The principal changes was:

• Change protocol to https
• Change CDN infraestructure

Now, we have a Azure platform with Trafic Manager to redirect request to origin platform. When test the cards in validator, in origin works correctly, but if we try to validate with the correct domain we receive the error:
ERROR: Fetching the page failed because the fetcher cannot resolve the address.

After open a case with Azure, they confirm that DNS is working with 0 errors in the last 6 hours. I don´t know what´s the problem. Could you help us?

One sample url is:

あなたの写真がカレンダーに ! #いつも心にスペイン Instagramキャンペーン ｜スペイン観光局

Thanks in advance.

[system]

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