WebPerformance Report

Web performance report every week in your inbox.. ⚡
Sponsored by: @Catchpoint - @RealWebPageTest | @DebugBear

[WebPerformance Report @WebPerfReport]

100K reports delivered. 🚀💯🎉🎇👏

A big milestone for WebPerformance Report.

We are building a new reporting layer for the web: performance, security, accessibility, and beyond.

Reports. Decisions. Results.

#webperf

[WebPerformance Report @WebPerfReport]

🚀 GA4 Overview Report is now live.

WebPerformance Report now supports analytics reporting.

Connect Google Analytics 4 @googleanalytics and receive periodic insights directly in your inbox.

Want to try it too? Send us a DM.

#WebPerf #GoogleAnalytics #Analytics

[WebPerformance Report @WebPerfReport]

https://t.co/ZPBjee6mVa

[WebPerformance Report @WebPerfReport]

⚡Featured posts this week :
✨ Zero Trust Implementation Guidelines: @NSAGov
✨ The Website Specification: @jdevalk
✨ Agent Skills: @addyosmani @OReillyMedia
✨ Lighthouse agentic browsing scoring: @GoogleChromeDev
🙏 Special thanks to the authors!
#webperf

[WebPerformance Report @WebPerfReport]

🎉 WebPerformance Report Week #22 is out! ✅

Join our growing community and subscribe today:
⚡ Web Performance Report:https://t.co/MDXwBwZRfk
🛡️ HTTP Security Report:https://t.co/z1ADGKSd6q
♿ A11y Report:https://t.co/AzU6yKJnCX

#webperf #websecurity #accessibility #a11y #ai

[Jake Archibald @jaffathecake]

Watch out! Chrome has a huge bug with <input type="number"> which causes values to change unexpectedly.

It's fixed in Chrome 150, but that won't land until the end of June.

[WebPerformance Report @WebPerfReport]

https://t.co/rTnh1Pb9iC

[WebPerformance Report @WebPerfReport]

⚡Featured posts this week:
✨ Forbes' A11y List 2026: @alanschwarz
✨ Modern Web Guidance: @paul_irish, @cjamcl, Rick Viscomi
✨ @vivaldibrowser: our biggest design overhaul: @jonsvt
✨ Unlock modern web capabilities: @philwalton
🙏 Special thanks to the authors!
#webperf

[WebPerformance Report @WebPerfReport]

🎉 WebPerformance Report Week #21 is out! ✅

Join our growing community and subscribe today:
⚡ Web Performance Report:https://t.co/MDXwBwZRfk
🛡️ HTTP Security Report:https://t.co/z1ADGKSd6q
♿ A11y Report:https://t.co/AzU6yKJnCX

#webperf #websecurity #accessibility #a11y #ai

[Danny Moerkerke @dannymoerkerke]

Firefox 151 now support the Document Picture-in-Picture API that enables web apps to open an always on top window that can be populated with arbitrary HTML content.

Details in the upcoming edition of Modern Web Weekly.

Demo and subscribe link 👇

🧵1/3

[Joan León 🏞️⚡️ @nucliweb]

This is why the @googlechrome DevTools MCP is a game-changer. The agent applies a fix, reloads ignoring cache, runs a Lighthouse audit, and checks the score to iterate on the next failure. Fully automated and deterministic.

#AgenticDev #WebDev #AI

[WebPerformance Report @WebPerfReport]

Do you remember when you joined X? I do! #MyXAnniversary

[WebPerformance Report @WebPerfReport]

https://t.co/U5ajxDLaTg

[WebPerformance Report @WebPerfReport]

⚡Featured posts this week:
✨ FAQ schema died twice: @jdevalk
✨ How optimize your content for gen AI: @googlesearchc
✨ Install web apps with the new HTML element: @patrickbrosset
✨ Browsers Treat Big Sites Differently: @denodell
🙏 Special thanks to the authors!
#webperf

[WebPerformance Report @WebPerfReport]

🎉 WebPerformance Report Week #20 is out! ✅

Join our growing community and subscribe today:
⚡Web Performance Report: https://t.co/MDXwBwZRfk
🛡️HTTP Security Report: https://t.co/z1ADGKSd6q
♿A11y Report: https://t.co/AzU6yKJnCX

#webperf #websecurity #accessibility #a11y #ai

[WebPerformance Report @WebPerfReport]

https://t.co/eSpgSPplLx

[WebPerformance Report @WebPerfReport]

⚡Featured posts this week:
✨ Build agent-friendly websites: Kasper Kulikowski & Omkar More
✨ Hardening Firefox with Claude Mythos: @bgrins
✨ Google to no longer support FAQ: @rustybrick
✨ A11y Best Practices: @MariaLamardo
🙏 Special thanks to the authors!
#webperf

[WebPerformance Report @WebPerfReport]

🎉 WebPerformance Report Week #19 is out! ✅

Join our growing community and subscribe today:
⚡Web Performance Report: https://t.co/MDXwBwZRfk
🛡️HTTP Security Report: https://t.co/z1ADGKSd6q
♿A11y Report: https://t.co/AzU6yKJnCX

#webperf #websecurity #accessibility #a11y #ai

[Joan León 🏞️⚡️ @nucliweb]

El agente de IA no sabe debuggear rendimiento si tú no le das el contexto para hacerlo.

No es que sea malo. Por defecto trabaja a ciegas: sin acceso al navegador, sin trazas reales.

#WebPerf #Performance #AIAgents #ChromeDevTools #Frontend

[WebPerformance Report @WebPerfReport]

Our @googleanalytics GA4 Reports are now being tested in our staging environment. 👀

We are getting closer to launching our new Analytics Report.

Performance, security, accessibility, and now analytics.

Something new is coming to our reporting layer.

#WebPerf #Analytics