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One week left! 1️⃣ Calling all frontend developers, designers, and CSS lovers! 🎨 The annual State of CSS survey is open, and your input helps shape the future of the web platform. Whether you're new to CSS or not, your voice matters! 🙌 survey.devographics.com/en-US/survey/s…

Firefox 141 Beta 2 is out with 4 bug fixes bugzilla.mozilla.org/buglist.cgi?bu…

Shadow DOM is the backbone of Web Components, enabling modular, maintainable, and style-isolated elements. 🎨 Create encapsulated, self-contained components, preventing conflicts and improving maintainability for reusable components. 🧩 Start building 👇 developer.mozilla.org/en-US/docs/Web…

Hey guys, we’re ready for Sunday. We checked the WebPerformance of Forbes website before Sunday’s delivery. Everything looks good! Take a look at the report: 👉 webperformancereport.com/report/wpt/250… #webperf #crux #corewebvitals #ux #seo #forbes

WebPerformance Report Week #26 is out! ✅ Dedicated to the loving memory of my grandmother, 1926–2025 🖤 – Edwin, Founder of WebPerformance Report

⚡Featured posts this week: ✨ How to fix Speed Index on PS: DebugBear ✨ Building the Web in Islands, Not Mountains: Den Odell ✨ AI Search Less Than 1% of Traffic: Glenn Gabe ✨ A guide to Scroll-driven Animations: Saron 🙏 Special thanks to the authors! #webperf

Wrote a post about CSS if()! You can now write inline CSS conditionals for: - style queries - media queries - supports queries Read on: developer.chrome.com/blog/if-article

📱 Safari has promised us LCP and INP before the end of the year! How does it impact you? And are you prepared? csswizardry.com/workshops/core…

Faster faster faster!! Check the latest performance optimisations on Akamai Technologies #webperf #cwv akamai.com/blog/performan…

TIL: Compression Dictionary Transport 💡 A new HTTP feature that can dramatically shrink the size of your responses, especially when serving content that changes often but includes a lot of repeated structure (think: JSON, JS, CSS). Learn more 👇 developer.mozilla.org/en-US/docs/Web…

Hey everyone! All our Web Performance reports are set for Sunday’s delivery! Our test report for Burger King shows significant Core Web Vitals issues: 🔴 LCP 🔴 CLS 🔴 INP 👉 Check out the full report: webperformancereport.com/report/wpt/250… #webperf #crux #corewebvitals #ux #seo

🎉 WebPerformance Report Week #27 is out! ✅ 🔍 Ready for next Week? Don’t miss out! ⚡ Web Performance Report: 👉 webperformancereport.com 🛡️ HTTP Security Report: 👉 webperformancereport.com/httpo/ #webperf #corewebvitals #ux #seo #cybersecurity #websecurity

⚡Featured posts this week: ✨ Conferences, Clarity, and Smokescreens: Alex Russell ✨ Real Perf Improvements 2025: Tim Vereecke & Robin Marx ✨ Snippets to Debug WebPerf: Ian Duffy ✨ Perf Hero: Harry Roberts: SpeedCurve 🙏 Special thanks to the authors! #webperf

Over time, front-end performance in the browser has become more and more important. But websites still can't be fast without a high-performing backend! Our new article explains what that means for developers and organizations. debugbear.com/blog/performan…

We are excited to announce that NuxtLabs is joining @Vercel to pursue our mission on creating the best DX to deliver the best UX. Read more at nuxtlabs.com

The day has finally come! PerfAgent is now publicly available under Apache 2.0: github.com/PerfLab-io/per… Using: - AI SDK - Mastra - Next.js - Drizzle ORM - shadcn The repo is still very much under development so any feedback is appreciated 🫡

Did you know about Strict Mode? 🤔 ✨ "use strict"; ✨ Strict Mode catches silent errors, making your code more predictable and easier to debug. It also improves performance and helps you write more secure JavaScript code. See how 👇 developer.mozilla.org/en-US/docs/Web…

Hey everyone! All our WebPerformance reports are set for Sunday’s delivery! Our test report for Stripe shows excellent Core Web Vitals results: 🟢 LCP 🟢 CLS 🟢 INP 👉 webperformancereport.com/report/wpt/250… #webperf #crux #corewebvitals #ux #seo

🎉 WebPerformance Report Week #28 is out! ✅⚙️ 🔍 Ready for next Week? Don’t miss out! ⚡ Web Performance Report: 👉 webperformancereport.com 🛡️ HTTP Security Report: 👉 webperformancereport.com/httpo/ #webperf #corewebvitals #ux #seo #cybersecurity #websecurity

⚡Featured posts this week: ✨ NuxtLabs is joining Vercel : Sébastien Chopin ✨ Back and Front Engineers Must Unite: Scott Moore ✨ PerfAgent is now publicly available: Vinicius Dallacqua ✨ Up and Coming ARIA: WebAIM 🙏 Special thanks to the authors! #webperf