Microsoft Azure Concepts – Content Delivery Network

Everyone wants a good experience accessing a websites content from any where at any time.  Whether we like it or not location comes into play, if I’m trying to stream content from Australia and I’m located in the United Kingdom, you can expect to receive circa 250ms latency, which means a poor user experience.

Microsoft have the answer which is Content Delivery Networks (CDN).  Essentially this is a global caching solutions that delivers the website content from a point of presence closest to the users.

Caching Content

When CDN is enabled you will create an endpoint.  An endpoint is the URL used to access your cached resources for example http://endpoint.azureedge.net.  Each CDN supports up to ten endpoints, which holds one of three types of cached content.

Blob Storage – If your Blob Storage is publicly available then it can be made accessible via CDN

App Services – If you are running App Services then you can again make these available via CDN

Cloud Services – If you are running Cloud Services then you can again make these available via CDN

What Locations Are Used

CDN has a point of presence (POP) in the following locations.

Australia Asia Europe North America South America
Melbourne

Sydney

Batam

Hong Kong

Jakarta

Kaohsiung

Osaka

Seoul

Singapore

Tokyo

Bangalore

Chennai

Delhi

Mumbai

Amsterdam

Copenhagen

Frankfurt

Helsinki

London

Madrid

Milan

Paris

Stockholm

Vienna

Warsaw

Atlanta

Chicago

Dallas

Philadelphia

Los Angeles

Miami

New York

San Jose

Seattle

Washington DC

Boston

São Paulo

Quito

 

This is shown in the conceptual diagram below.

Azure CDN

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