#webperf

2025-05-20

CPU consumption by the browser is one of the main causes of a poor user experience. The biggest culprit? JavaScript execution. Now you can monitor Long Animation Frames (LoAF) and fix the third parties and other scripts that are hurting your UX!

speedcurve.com/blog/long-anima

#webperf #javascript #js #ux #sitespeed #pagespeed

Be APIbeapi
2025-05-19

WooCommerce 9.9 met le paquet sur les perfs côté admin : lazy loading des composants React, exécution JS plus efficace, rendu affiné…

Résultat : un back-office bien plus rapide, en particulier pour les boutiques avec du volume. Une évolution bienvenue pour améliorer l’UX sans toucher au front.

🔗 developer.woocommerce.com/2025

Be APIbeapi
2025-05-19

Et si on arrêtait de traquer le moindre ko dans nos images ? @remkus rappelle que, passé un certain seuil (WebP + compression correcte), l’optimisation d’image offre peu de gains réels.

À lire pour questionner nos réflexes de perf et recentrer les priorités sur ce qui compte vraiment.

🔗 remkusdevries.com/stop-obsessi

WebPerformance Reportwebperfreport@webperf.social
2025-05-18

🎉 WebPerformance Report Week #20 is out! ✅
🔍 Ready for next Week? Don’t miss out!
Join our growing community of #WebPerformance enthusiasts and subscribe today:
⚡ Web Performance Report: 👉 webperformancereport.com/
🛡️ HTTP Security Report: 👉 webperformancereport.com/httpo
#webperf #corewebvitals #ux #seo #cybersecurity #websecurity

2025-05-17

Do you still minimize HTML? I think it's particularly worth minimizing if your pages are lightweight. I like how github.com/wilsonzlin/minify-h has a --preserve-brace-template-syntax option to keep templating working
#webPerf

WebPerformance Reportwebperfreport@webperf.social
2025-05-17

We checked the WebPerformance of Notion's website before Sunday’s delivery. Everything looks good!
Take a look at the report:
👉 webperformancereport.com/repor
#webperf #crux #corewebvitals #ux #seo

Inautiloinautilo
2025-05-16


Is your website gzipped? · How gzip compression of HTML/CSS/JS files works ilo.im/163v0a

_____

Sia Karamalegossia@front-end.social
2025-05-14

Latest newsletter is out for Theme Vitals - see the latest web performance/Core Web Vitals data for Shopify themes individually and all together. The site also shows market rankings and distributions of theme versions.

#Shopify #webperf

buttondown.com/theme-vitals/ar

2025-05-13

Calculating downtime loss is pretty straightforward. For example, if your site averages $100K/hour in revenue, and you suffer a 3-hour outage, you can estimate you lost $300K.

Calculating losses due to site slowdowns isn't as simple, but you can still get an idea of what those losses might be.

Scroll down this post to find a formula you can use to estimate how site slowdowns can hurt your revenue:

speedcurve.com/blog/downtime-v

#webperf #ux #sitespeed #pagespeed

Dave Rupertdavatron5000
2025-05-13

Attending a symposium today.

two panel meme:
1. winnie the pooh in his normal red shirt frowning next to the word "one-day conference"
2. winnie the poo in a tuxedo smiling with the word "symposium"
Sia Karamalegossia@front-end.social
2025-05-13

April data is now live in Theme Vitals - see how Shopify themes perform on Core Web Vitals and market ranking themevitals.com/themes/

#webperf #Shopify

2025-05-12

A surprising number of people aren't aware that the consent banners on their pages hurt #ux and #seo. That's because consent banners delay LCP for a lot of pages.

The result? Your visitors have a slow experience, which sucks for them. And because LCP is a Google search ranking factor, it also sucks for you.

@cliff explains the most common problems – and their workarounds – with measuring #pagespeed with consent managers: speedcurve.com/blog/web-perfor

#corewebvitals #webperf #sitespeed

Side-by-side snapshots of two points on the page rendering timeline for Lufthansa.com on a mobile device. The Start Render frame is mostly empty at 3.9 seconds. The Largest Contentful Paint frame shows a consent banner at 21.75 seconds.
2025-05-12

Suggestion for new art form: Poems about web performance which comprise entirely of words in the Brotli dictionary and use Brotli's word transformations:
gist.githubusercontent.com/dus
datatracker.ietf.org/doc/html/
#webPerf

Frank HochmuthFraenkiman
2025-05-11

🎉 Your FlatPress blog now shines in new splendor: Adaptive fade-in animations adapt to your network, device and settings - for faster loading times, less distraction & better accessibility!
👉 https://wiki.flatpress.org/res:plugins

WebPerformance Reportwebperfreport@webperf.social
2025-05-11

🎉 WebPerformance Report Week #19 is out! ✅
🔍 Ready for next Week? Don’t miss out!
Join our growing community of #WebPerformance enthusiasts and subscribe today:
⚡ Web Performance Report: 👉 webperformancereport.com/
🛡️ HTTP Security Report: 👉 webperformancereport.com/httpo
#webperf #corewebvitals #ux #seo #cybersecurity #websecurity

🎉 WebPerformance Report Week #19 is out! ✅
WebPerformance Reportwebperfreport@webperf.social
2025-05-10

🔔 Reminder!!!
You’re still on time to check the performance of your Blog, Web App, Business Website, Ecommerce, Startup, or Corporate Website this week with WebPerformance Report.
Don’t miss it. Subscribe now:
👉 webperformancereport.com
#webperf #ecommerce #startup #seo #ux

WebPerformance Reportwebperfreport@webperf.social
2025-05-10

✈️ We checked the WebPerformance of Lufthansa's website before Sunday’s delivery. Everything looks good!
Although Lufthansa's #WebPerf is not so good.🫣😅
Take a look at the report:
👉 webperformancereport.com/repor
#corewebvitals #ux #seo #WebPerformance

2025-05-10

I find it wild that the Brotli RFC includes C code with a function with the non-descriptive name of "Ferment" and also doesn't describe its intent.
rfc-editor.org/rfc/rfc7932#sec
#webperf

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