Video there: https://www.youtube.com/watch?v=FEs2jgZBaQA

Summary: We further explore the results of upgrading to a faster server. Overall the site showed improved response speed and website "stickiness." Average page load times improved by 48% to 60% server response times improved by more than 60%, and people stayed longer, viewed more pages, and bounced less.

RWDPerf - Performance testing tool for Responsive web designs.

A "webfont" is a set of resources, not just a single download. A single resource that includes all stylistic variants, which we may not need, plus all the characters, which may go unused, would simply be too large - tens of megabytes for a font with good unicode and stylistic coverage!

Sitespeed.io is an open source tool that helps you analyze your website speed and performance based on performance best practices and metrics. It collects data from multiple pages on your website, analyze the pages using the rules and output the result as HTML or JUnit XML.

When we look back over the history of web performance we see a heavy focus on reducing the number of requests and getting files to the browser quickly. Our platform has changed a lot, and while optimizing for network performance remains a crucial part of our jobs, we now have to broaden our performance horizons. Our users also expect smooth scrolling, animations and interactions, even on mobile devices. In short we need to deal with not just how quickly our sites and apps load, but also how quickly they run. [video] In this session Paul takes a lightning tour of how Chrome converts the DOM into pixels, see how our code affects its workload, and arrive at a modern workflow for finding (and eliminating) rendering bottlenecks.

I've started experimenting with my home page to make it load even faster. Amazon famously does this too which you can read more about in this Steve Souders post. They make sure everything that needs to be visible above the fold is loaded first, then, it starts loading all the other "stuff" below the fold.

Vidéo: http://www.youtube.com/watch?v=YV1nKLWoARQ

I shouldn't need to explain the importance of front-end performance at this point; after two previous posts, 9 Ways to Optimize Your Front End Performance and...

Too often, any talk of web performance quickly ventures into the land of heavy geekery. Terms like DNS lookups, Gzipping, minifying, far future expires headers, caching, ETags and more are thrown around and consequently lose the attention of most non-techy people.