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WebBundles – JS Delivery Without the Tradeoffs

Delivering Javascript has inherent tradeoffs - large bundles result in better compression and lower processing overhead, but compromise caching granularity and execution parallelism. Wouldn't it be great if we wouldn't…

How to read a WebPageTest waterfall chart

WebPageTest (WPT) is the goto tool when it comes to analysing, and ultimately fixing web performance problems with a website. Much of the power of WPT comes from its waterfall…

LWP October – Performance Psychology, and Optimisation Experiments

LWP October – Performance Psychology, and Optimisation Experiments

We’re back from our extended summer break with talks by two of our organisers, Simon and Andy…

Simon will be talking about the psychology and physiology of speed, why slow sites are irritating and how that feeds into visitor behaviour and the latest performance metrics.

Andy will demonstrate how he’s using a combination of WebPageTest and Cloudflare’s Workers to explore and analyse possible performance optimisations before he recommends them to clients.

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