LDNWebPerf.org

Web Workers are really powerful for making JS heavy sites faster, new libraries make them easier than ever to use so there is no reason to not take advantage. But beware some hidden costs!!

How can we measure that a web page’s experience is something we can consider “fast”? And is there a one true metric that can tell us our users are happy with the experience we provide them, at least from a performance perspective? The loading and runtime experience on the web…

Optimising the performance of a web site with over 10 million visits daily is no mean feat. When digital advertising revenue is your bread and butter, it's even harder. How did we solve this real world challenge? What did we learn along the way? Where are we going next? We…