How long does azure cdn live before updating

Matan L asked:

I am using the windows Azure CDN,
And not like Amazon’s one cannot configure any TTL regarding the files,

I was wondering if there is any official document microsoft had regarding to the Time-to-live of the cdn content until it is being update ?

Or does anyone know this at all…

Here is a document about the cdn from microsoft, they mention the TTL but not its size :

My answer:

If you pull from an Azure blob service, the time to live is governed by the x-ms-blob-cache-control property that you set on each blob.

If you pull from an Azure cloud service or custom domain, then the time to live is governed by the HTTP Cache-Control response header that the origin server sends.

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