document: Measuring a commercial content delivery network Content delivery networks ( CDNs ) have become a crucial part of the modern Web infrastructure . This paper studies the performance of the leading content delivery provider - Akamai . It measures the performance of the current Akamai platform and considers a key architectural question faced by both CDN designers and their prospective customers : whether the co-location approach to CDN platforms adopted by Akamai , which tries to deploy servers in numerous Internet locations , brings inherent performance benefits over a more consolidated data center approach pursued by other influential CDNs such as Limelight . We believe the methodology we developed for this study will be useful for other researchers in the CDN arena .
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