Stoyan Stefanov | Progressive Downloads and Rendering [Fronteers 2010]
After harvesting the performance low-hanging fruits suggested by YSlow and PageSpeed, what do you do next to improve the performance of your web application? You work on improving the user's perception of speed and time. We all know perceptions lie and perceptions of time and duration even more so. So how do you make users believe the application is fast and responsive? The word is "progressive". When the page components download in parallel and don't block each other, the page loads quicker. And when the page renders progressively, it not only gives the user confidence and assurance that the applications works fine and they'll soon complete their task but it also appears that the app is snappier and more responsive. More info at: https://fronteers.nl/congres/2010/sessions/progressive-downloads-and-rendering-stoyan-stefanov