Debugging CDNs: A Need for Change

It’s a Saturday afternoon: An email from a customer drove me to start troubleshooting an issue they were experiencing with Amazon S3. They were experiencing random high wait time, usually an indication of a problem with communication back to some sort of an origin system. Should’ve been a piece of…

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Revisiting the Anatomy of HTTP: Pt II

In Part I, we discussed the various components of HTTP request. In particular, we walked the reader through the details of TLS (Transport Layer Security), its impact on performance and how to mitigate it. Besides security, mobile performance has assumed the center stage owing to increasing use of mobile devices…

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