Azure Front Door (classic) pricing: Data Transfer meaning

Rafael Gil Sanchez 86 Reputation points

Hello Microsoft Team, I have some doubts about some costs that are generated in my billing.

Azure Front Door Service - Estándar - Zona 1

Azure Front Door Service - Estándar GB Transferencia de datos de salida - Zona 1

1 GB 73.1196 $0.19 $13.74 DZH318Z0BZ5S 6

What is the meaning of:

1.- Data transfer out (i.e., data going out of edge location to the client)


2.-Data transfer in (i.e., data coming into edge location from the client)

3.- What do you mean by "edge location" ?



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Azure Front Door
Azure Front Door
An Azure service that provides a cloud content delivery network with threat protection.
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  1. Priya Kumar 466 Reputation points Microsoft Employee

    Hello @Rafael Gil Sanchez ,


    Thanks for reaching Microsoft Q and A platform.


    How Frontdoor works:

    ·       Azure Front Door delivers your content using Microsoft’s global edge network with hundreds of global and local points of presence (PoPs) distributed around the world close to both your enterprise and consumer end users.

    ·       The user or client application initiates a connection to the Front Door. The connection terminates at an edge location closest to the end user. Front Door's edge location processes the request.

    ·       Edge Location will have the POP servers, where the request would cache if enabled the cache without request been sent all the way to “Origin” which is added as the backend in the Frontdoor config.

    ·       How to know your request hit which POP server:

    Once you enable the Diagnostics log in the Frontdoor and see the request, you will have the information on which POP server and location the request hit on, which indeed is the Edge Location.

    Azure Front Door edge locations by abbreviation | Microsoft Learn


    Now, this could explain what does the Data Transfer out and Data Transfer in means. 😊


    In simple: Client ==> AFD (Nearest POP), if cache return data to client (If not) ==> Pull the data from Origin.

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