Pre-imported file delivery is the main operating mode of the Video CDN. In fact, the mechanism described here applies to roughly 99.9% of all requests handled by the network.

Therefore, let’s assume you have already uploaded a file using one of the available import methods:

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The CDN storage then maintains multiple copies of that file across its global infrastructure. The diagram below illustrates how the file is distributed within the network:

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At the moment, the file is available for the visitors. They open it in their browsers, and requests are sent to redirectors. Redirectors route requests to the optimal edge nodes:

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Video CDN watches files’ popularity. The increasing demand for certain sorts of files makes CDN react accordingly.

Our system adapts the count of file copies and their disposition on additional edge nodes over the world. Afterwards, redirectors rebalance incoming traffic to the new points.

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Such statistics exist for each datacenter. Different locations over the world have their distinct content “tastes”, as well as different countries demand different goods.