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出典:Wikipedia
出典:『Wikipedia』 (2011/06/22 21:01 UTC 版)
A content delivery network or content distribution network (CDN) is a system of computers containing copies of data placed at various nodes of a network. When properly designed and implemented, a CDN can improve access to the data it caches by increasing access bandwidth and redundancy and reducing access latency. Data content types often cached in CDNs include web objects, downloadable objects (media files, software, documents), applications, live streaming media, and database queries.