Speed at Scale: Web Performance Tips and Tricks from the Trenches (Google I/O ’19)
Hi. Everyone my name is Katie and Pena's and I'm addy Osmani we work on the probe we. Work on the chrome team on trying, to keep the web fast today, we're going to talk about a few web performance tips, and tricks from, real production, sites but. First, let's, talk about buttons. Now, you've, probably had to cross the street at some point and may have had to press a pedestrian. Beg, button before now, there are three types of people in the world there are people who press, the button once there. Are people who don't press the button and then people who press it a hundred times because, of course that makes it go faster. The. Frequency, of pushing these buttons increases. Proportional, the user's level of frustration want. To know a secret sure. Lisa, in New York most of these buttons aren't even hooked up so your. New goal is to have a better time to interactive, than this. Now. This experience, is feeling frustrated, with you know buttons just not working, is actually, something that applies to the web as well according. To a UX study, that was done by Akamai, in 2018. Users, expect, experiences, to be interactive, in about 1.3, times the point when they're visually, ready and if they're not people end up rage clicking right. It's important for sites you visually, already and interactive. It's an area where we still have a lot of work to do here. We can see page weight percentiles, on the web both, overall and by resource, type if, one of these categories is particularly high for a site it typically, indicates, that there's room for optimization, and in case you're wondering what this looks like visually, it looks a little bit like this you're sending just way too many resources down to the browser. Delightful. User experiences, can be found across the world so today we're at a deep dive into performance. Learnings from some of the world's largest brands. Let's. Start by talking about how sites approach performance. This. Probably looks familiar for, many sites, maintaining. Performance is just as difficult if, not more difficult than, getting fast in the first place. In. Fact. An internal study, done by Google found that 40% of, large brands regress, on performance, after six months. One. Of the best ways to prevent this from happening is, through performance, budgets performance. Budgets at standards, for the performance, of your site just. Like how you might commit to delivering, a certain level of uptime, to your users you commit, to delivering a certain level of performance.
Based, On their situation so. Those are just a few things that people are doing with adaptive serving it's, almost. Time for us to go it, is we, hope you found our talk helpful, remember you can get fast with many of the optimizations. That we talked about today and you can stay fast using performance, budgets and light wallet that's, it from us thank you thank, you.