Despite spending countless hours optimizing our own sites, many of us still look at sites like Amazon’s or the Guardian’s in awe, wondering how they are still so much more performant. What are they doing differently? David Fox reverse engineers these sites, shedding light on the various tricks and optimizations they have and we don’t.
The reason why these sites are so performant is simpler than you might think: the companies just have a really good understanding of how the internals of browser engines like WebKit, Blink, Gecko, and Trident work on desktop and mobile. And because of that knowledge, these companies are able to design optimally and use a multitude of tricks and optimizations we don’t.
David Fox is CTO and founder of LookZook—a company providing highly visual web performance metrics for developers and CMOs. David got his start in programming and UX as a Flash game developer during the golden age of Flash gaming (remember Newgrounds?). Since then he’s applied that knowledge and transitioned to the web: becoming a Blink contributor, speaker, and writer for various blogs like the annual Performance Calendar. In his free time, David enjoys reading about psychology, cooking, playing video games, and beating his friends at poker.
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