⚡ We’ve made public the Perf Links dataset we update every week. A simple, week-by-week collection of Web Performance resources. All links from this year (including this week): https://t.co/Ueq1LrKVcN #webperf

This week’s Perf Links (and previous weeks) are available here: 👉

⚡Featured posts this week: ✨ LCP and INP are now Baseline: @tunetheweb @mmocny ✨ Faster pages with Compression Dictionaries: @suxbyrumvision ✨ A Short History of Perf Engineering: @apodelko ✨ Next.js Perf Optimization: @danywalls 🙏Special thanks to the authors! #webperf

🎉 WebPerformance Report Week #51 is out! ✅ 🔍 Ready for next Week? Don’t miss out! ⚡ Web Performance Report:👉 https://t.co/MDXwBx0p4S 🛡️ HTTP Security Report:👉 https://t.co/z1ADGKSKVY ♿️ A11ty Report:👉 https://t.co/AzU6yKJVsv #webperf #websecurity #accessibility #a11ty #ai

Web Performance Calendar day 18 with Amrik Malhans on breaking down LCP to pinpoint what's slowing down the page exactly and where to focus your UX-optimizing efforts https://t.co/vDzYGD8yzJ

Web Performance Calendar day 17 with @adamzwasserman on outperforming modern frameworks with this one weird little trick https://t.co/S6lBMj6aAf

🚀 MAJOR DevTools Update! I've upgraded the CSS Media Queries Analysis snippet to instantly reveal the hidden cost of shipping unused CSS. Problem: Mobile users often download 50KB+ of desktop-only CSS that blocks rendering and kills performance. New Feature: Performance Impact

@SumitM_X It's a bit more complex than that. By your description, folks would be protected if the responses were open as long as the requests were without credentials, but the real issue is sites that serve private data without credentials. More:

Web Performance Calendar day 15 with @nicj, Cliff Crocker and Karlijn Löwik presenting an update on W3's RUM Community Group and YOU https://t.co/8fTjoV79Yf

You can now measure LCP and INP scores in both Safari and Firefox! https://t.co/xhZ8G6UJqT

⚡Featured posts this week: ✨ Anatomy of a WebPerfReport: @WebPerfReport ✨ WebKit Features for Safari 26.2: @jensimmons ✨ How Monrif improved engagement by 8.9%: Fabrizio Guerra Gianni Onnis ✨ How to load CSS (fast): @yoavweiss 🙏Special thanks to the authors! #webperf

🎉 WebPerformance Report Week #50 is out! ✅ 🔍 Ready for next Week? Don’t miss out! ⚡ Web Performance Report:👉 https://t.co/MDXwBx0p4S 🛡️ HTTP Security Report:👉 https://t.co/z1ADGKSKVY ♿️ A11ty Report:👉 https://t.co/AzU6yKJVsv #webperf #websecurity #accessibility #A11ty #AI

i'm looking for someone truly obsessed with web performance to join the Next.js team no need for prior framework experience, just strong React skills and real product performance wins :) if you love squeezing every millisecond out of the web, please reach out 🙏

Some of the #WebPerf case studies are suspicious Forget about 100 ms = 1% extra revenue from the Amazon Thank you for letting me publish in the WebPerf Calendar by @stoyanstefanov! https://t.co/NC2vZVH2oC

15 Jobs that will be in demand in 2030: 1. Machine learning and AI specialists 2. Fintech engineers 3. Information security analysts 4. Business intelligence analysts 5. Sustainability specialists 6. Data analysts and scientists 7. Big data specialists 8. Robotics engineers

Web Performance Calendar day 8 with Edwin Molina Hernández (@WebPerfReport) showing how a great perf report is more than numbers, it turns metrics into actionable answers to questions like "what improved?", "what regressed?", and "what to do next?". https://t.co/wkLovCYtPh

⚡Featured posts this week: ✨ Timeline of web features and browser support: Rick Viscomi ✨ Fast by Default: @denodell ✨ Analyzing CSS Media Queries to Optimize Perf: @nucliweb ✨ What was new in web perf in 2025: @mattzeunert 🙏 Special thanks to the authors! #webperf

🎉 WebPerformance Report Week #49 is out! ✅ 🔍 Ready for next Week? Don’t miss out! ⚡ Web Performance Report:👉 https://t.co/MDXwBx0p4S 🛡️ HTTP Security Report:👉 https://t.co/z1ADGKSKVY ♿️ A11ty Report:👉 https://t.co/AzU6yKJVsv #webperf #websecurity #accessibility #A11ty #AI

🤩We just opened the Public Preview of our Reporting as a Service (RaaS) platform before the general release. Users from different countries are already accessing their personal Boards. Explore the platform by getting your own report: 👉 https://t.co/A7ODZWdnEs #webperf

I'm excited about this API, but I think it's a bit dishonest to 'demo' an animation feature using stuff created in After Effects or whatever. These things should be demoed for real, to prove that the API is capable of it. Or, they should add "Not in-game footage" to the bottom.