Web Performance Calendar day 16 with @sandervs.bsky.social on why the word "millisecond" doesn't belong in the boardroom calendar.perfplanet.com/2025/why-we-...

Web Performance Calendar'25 day 1 with @mb21.bsky.social on HTTP streaming in the world of HTTP2/3 and Node. Mauro shows us how to start rendering earlier, turning a slow (full) page load into a progressive experience using db.stream() in JavaScript calendar.perfplanet.com/2025/improve...

Web performance calendar day 3 when @ethangardner.com shows us how to train a ML model on synthetic perf metrics and use it to predict approximate field data before a page/feature goes live. calendar.perfplanet.com/2025/traffic...

Web Performance Calendar day #4 when @denodell.bsky.social shows us how to adopt a fast-by-default mindset to escape the vicious cycle of ship-complain-panic-patch. calendar.perfplanet.com/2025/fast-by...

Telescope, the new cross-browser performance testing agent I mentioned at #perfnow that we @cloudflare.social have open-sourced is here: github.com/cloudflare/t... We want this to be a tool the entire community is able to contribute to and benefit from, so please help us make it better!

Schedule schedule on the wall, who has the best line-up of them all? perfnow.nl/schedule.html

🚀 Quick Performance Tip: Not every conversion issue is a checkout issue. Slow pages earlier in the flow mean fewer baskets and fewer orders. #pagespeed #CRO #ux #webperformance #ecommercegrowth #digitalexperience

🚀 Quick Performance Tip: Most sites do not lose customers at checkout. They lose them to small frictions earlier in the flow. A blank screen, a shifting button, a slow filter. Each breaks trust. And trust is what sells. #ecommerce #uxdesign #webperformance #CRO #pagespeed

🚀 Quick Performance Tips (series intro): Performance still is not a hygiene factor in e-commerce. But it should be. Over the next few weeks I will share a short series on how flow, friction and trust shape user behaviour and sales. #ecommerce #webperformance #conversionrate #digitalgrowth

performance.now(), the web performance conference, 30th and 31st of October, Amsterdam. Single track, the best speakers in the industry, plenty of your performance-mad peers around to have fascinating conversations. What's not to like? Let's introduce our speakers ... perfnow.nl

Google's new CrUX API updates offer deeper performance insights: 🚀 LCP Image Subparts – Find what’s slowing your LCP 📸 LCP Resource Type – Know if LCP is text or images 🌐 RTT Data – Understand network latency better Optimize your site with these new metrics! #webperf #SEO #userexperience

Two months ago, I spoke about INP (Interaction to Next Paint) and the scheduler.yield() at @frontmania.bsky.social -- and the feedback is in... 🥈 I was rated the 2nd best speaker at the event! 🌟 🥳 🎉

2 months ago, I gave a talk at @frontmania.bsky.social where I showcased a demo I created to highlight INP issues on a PDP page when switching colors. It showed how small delays can frustrate users and hurt conversions. Check it out: inp-demo.netlify.app/product-detail #webperf #INP #performance

Yesterday during my #perfnow talk, I mentioned the Web Performance Slack. If you’d like to join the Slack, use this link before Nov 25: join.slack.com/t/webperf…

We finally know what Erwin looks like without his hat! #perfnow

The golden rule of performance improvement: "Always measure the impact of your changes." #perfnow

Took 2 mins at #PerfNow to talk about the RUM Community Group in W3C for anyone doing RUM. It's free and easy to join if you're interested! www.w3.org/community/ru...

On my way to @perfnow.bsky.social excited to catch all the talks! #perfnow

It’s the 5th anniversary of @perfnow.bsky.social, one of the most well-organised events with an amazing audience! 🎉 First stop today: WebPerfDays Unconference at Google Amsterdam. Huge thanks to everyone who made this possible—let’s connect if you’re there or catch the livestream! 🚀 #perfnow

The 2024 Web Almanac just dropped! Full of real data on Core Web Vitals, JavaScript, images, and more. It’s perfect for helping you improve your site with real numbers. Check it out! almanac.httparchive.org/en/2024/ #pagespeed #webperformance