Slow websites suck! Barry Pollard sharing the top Core Web Vitals recommendations at JSNation | The key JS conference. Overflow crowd! #webperformance

Safari 17 for web and PWA devs 🎁<model> for 3D and AR files 🍿popover 🕛HTTP Early Hints 🌆HEIC/HEIF/JPEG XL 🎥Managed Media Source 🔔Web Push per profile 🫙Storage API 💧ReadableStream 🔝Fetch Priority Hints 👩‍💻Web App install on macOS 📦PWA Install from SFViewController

If you’re into #webperf you HAVE to go to this conference. Had a blast both times I’ve been and definitely going again this year. So many great people there and great atmosphere.

My latest blog post goes in-depth on why & how to remove SVGs from your JS bundle: kurtextrem.de/posts/svg-in-js, inspired by a tweet from Jason Miller 🦊⚛. + some surprises inside, e.g. did you know that SVG animations inside <img> are capped to 60 Hz? I didn't. #webperf

PSA: with no notice given, my account's DM settings were changed to only allow bluechecks. AKA the last people I want sending me DMs. Only noticed because someone else said it happened and I checked my own. You can change this in Settings > Privacy and Safety > Direct Messages.

Do you use the CWV Tech Report? cwvtech.report It merges the CrUX dataset and HTTP Archive 💾 crawl data to trend CWVs by technology. We're working on a brand new version with a new UI and would love to hear how you use the current version: github.com/HTTPArchive/cw…

Tip: In Chrome DevTools you can now hide network requests from Chrome extensions! 😍 Huge for focusing on just your code when profiling performance.

Munich tested a number of different methods to protect cyclists on bicycle lanes. Would be nice if #malta even pretended to try.🤷 muenchenunterwegs.de/content/1372/d… (Photo from July 2022)

Kevin Farrugia and malchata.htm have launched “Learn Performance”, the latest in our series of free courses from Chrome for Developers . Check it out! web.dev/learn/performa…

<iframe loading=lazy> has landed. Lazily loaded iframes are only loaded when visible, speeding up initial page load. See bugzilla.mozilla.org/1860729

That was fun! 😁 Thanks Henri.

The video of my performance.now() conference talk “Bridging the Digital Divide using Web Performance” is now available to watch! 😍 The video, presentation, notes, and all references are available here: talks.nooshu.com/N86m1L/bridgin… I enjoyed writing it,I hope you enjoy it too. #webperf #perfmatters

Noisy Real User Monitoring (RUM) data can ruin your day! At #PerfNow, Tim Vereecke introduced a fresh concept called “Human Visible Navigations” (HVN) to tackle this risk. Slides: scalemates.com/akamai/perfnow… youtube.com/watch?v=YzkdiT…

🪩 Web Performance calendar day 2 with Jacob 'kurtextrem' Groß ⏱️ revisiting a study on parsing large chunks of JSON, e.g. those used to pass state in SPA-like apps 🙀 surprise: things in 2023 look different than 2019 🔗 calendar.perfplanet.com/2023/fastest-w…

🪩 Web Performance calendar bonus 4 🔗 calendar.perfplanet.com/2023/server-ti… 🎇 Nishu Goel (Nishu Goel) not only shows us 70% perf improvement with the help of Server-Timing 🛠️ but also ships a new open source tool to go with the article And that's a wrap. Happy 123123 day and 2024 year!

🚀 On day 2 of #100DaysOfPerf, want to share 2 foundational resources : 1. nah launched a course that is now accessible from WebPageTest™ , for FREE: bit.ly/wpt-lfwp This is something for those really trying gather what modern #webperf is like. (RT?) (1/n)

🚀 the second is another course from the Google team on Web/Dev. I talked about this w/ Kevin Farrugia @ performance.now() conference. Another free course: bit.ly/learn-perf Both can be done at your own place, but are meant to really bring you to *speed* on modern perf (2/n) RT? #100DaysOfPerf