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Lean Websites by Barbara Bermes

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Chapter 9Network and Server Performance Improvements

Warm Up

The performance techniques we've covered so far have focused on optimizing the front-end of a website—or everything that is downloaded to the browser. In this chapter, we'll focus on improving back-end performance, which involves tweaks to your network and web server.

Content Delivery Networks

A content delivery network (CDN) is a hosting service that's optimized for serving content quickly, in an attempt to overcome latency. If a user in Berlin requests a page that is hosted in San Francisco, on a server without a CDN, all the assets of that page must be retrieved from San Francisco, making its way over the Atlantic ocean. Pretty cumbersome, don't you think? A CDN alleviates this ...

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