This webpage is used to compare video and image load performance of CDN vs No CDN. The video is running at 720p and its size is 30MB. The image is 21 mega pixel and its size it 17MB.
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Video and Image courtesy of No CDN, direct from storage.

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Video and Image courtesy of Azure CDN from Verizon.

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Video and Image courtesy of Azure CDN from Akamai.

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Video and Image courtesy of Azure CDN from Microsoft.