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Jeremy Wagner takes a closer look at one of them: the browser preload scanner. Browsers make certain optimizations to improve performance that developers can’t. Don’t Fight The Preload ScannerĪpart from all the performance optimization techniques and strategies, there’s an aspect often overlooked when we talk about optimizing page speed: browsers.
Kenji Baheux summarized everything you need to know about Early Hints. To speed up page loads, the browser can use those hints to do some work in advance, such as warming up connections and requesting sub-resources while waiting for the main resources. The Chrome team recently presented a solution to make use of this “server think-time”: Early Hints. Well, as it turns out, we can employ this latency to our advantage.
Design 360 magazine united states how to#
Karolina Szczur explains when to use Priority Hints and how to implement them.īut what about server latency that delays rendering of a page? With websites having become more sophisticated over time, it’s not unusual that a server needs to perform non-trivial work to produce the HTML for the requested page - to access databases or CDNs accessing the origin server, for example. Priority Hints are here to give you more control over asset prioritization - to signal high-priority images, priority of asynchronous scripts, or priority of Fetch API calls, for example. And while browsers can make educated guesses about which assets are critical, each site and application is different in setup and context. Loading critical assets as fast as possible is vital for improving web performance and user experience. Lots of stuff is happening, and we have some exciting updates coming up soon, this time around for our printed stuff! In the meantime, stay tuned, and take good care of yourself and of your family! We hope to see you there!Īnd of course, we have a few SmashingConfs coming up later this year, and there are plenty of online workshops and a video course to take a look at as well.
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In our Smashing news, we have a new free workshop Crash Course on Jamstack with Next.js and Storyblok coming up this Wednesday, kindly powered by Storyblok, who is equally great in headless CMS and in being a kind friend of Smashing over the years. From priority hints and third parties to speculative prerendering, preload scanner and dealing with LCP, we hope that you’ll find some useful gems in here. In this newsletter, we look at some of the uncharted territories of web performance. Yet there are plenty more things to explore: from priority hints to back/forward cache. Of course, green scores aren’t easy to achieve, but there are some useful ideas of how to get there.
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With Core Web Vitals, we’ve learned the important metrics to optimize for, and have also discovered strategies on how to optimize our code base for performance. Sometimes it might feel like we have it all figured out.
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