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WebPerformance Report
@webperfreport.bsky.social
Web page performance test report every week in your inbox. ⚡
Sponsored by: @Catchpoint | @DebugBear
👉 https://webperformancereport.com/
Pinned
🎉 New on WebPerformance Report: WAVE Accessibility Report ♿️
In collaboration with WAVE by @webaim.bsky.social, we’re bringing accessibility insights straight to your inbox.
Because a truly performant web must also be an accessible one.
👉 webperformancereport.com/wave
#WebPerf #Accessibility #A11y
WAVE Report | WebPerformance Report
Web Accessibility report every week in your inbox. Reports, Decisions, Results...
webperformancereport.com
⚡Featured posts this week:
@cloudflare.social TELESCOPE: @sergeyche.dev & @tkadlec.bsky.social
✨ Optimizing Webfonts: Lucas Dohmen
✨ How to optimize SVG files: @laurakalbag.bsky.social
✨ Using the Web Monetization API: @tomayac.com
🙏 Special thanks to the authors!
#webperf
November 9, 2025 at 1:18 PM
🎉 WebPerformance Report Week #45 is out! ✅
🔍 Ready for next Week? Don’t miss out!
⚡ Web Performance Report: 👉 webperformancereport.com
🛡️ HTTP Security Report: 👉 webperformancereport.com/httpo/
♿️ A11ty Report: 👉 webperformancereport.com/wave/
#webperf #websecurity #accessibility #A11ty #AI
November 9, 2025 at 12:05 PM
Reposted by WebPerformance Report
My gist “How Browsers Work” has been updated with a new post: “How modern browsers work” by @addyosmani.bsky.social

gist.github.com/nucliweb/c16...

#WebPerf #Browser #WebDevelopment
How Browsers Work
How Browsers Work. GitHub Gist: instantly share code, notes, and snippets.
gist.github.com
November 7, 2025 at 11:14 AM
💡Small UI update!
The Core Web Vitals section now shows Lab and Field Data separately, making results easier to read and compare.
For pages with Chrome UX Report data, you can now jump straight to CrUX Vis right from your report.
Small detail, big clarity improvement.⚡
#WebPerf #CrUX #CoreWebVitals
November 7, 2025 at 6:12 PM
Reposted by WebPerformance Report
If you are interested and want to learn about Web Performance, I recommend subscribing to @henrihelvetica.bsky.social's channel, where you will find high-quality videos from leading figures in the Web Performance community

📺 www.youtube.com/@HenriHelvet...

#WebPerf #Performance #Learning #YouTube
Henri Helvetica
www.youtube.com
November 3, 2025 at 5:33 PM
💫 When performance experts choose WebPerformance Report to simplify and share their insights, it reinforces our mission to make data more actionable for everyone.
Thank you, Jacob @kurtextrem.de, for trusting WPR to bring clarity to web performance. ⚡
👉 webperformancereport.com#Testimonials
#webperf
November 3, 2025 at 6:41 PM
⚡Featured posts this week:
✨ Improving perf by prefetching product pages: @stoyan.me
✨ HTTPS by default: Andrew R. Whalley
✨ Write Code That Runs in the Browser: @jim-nielsen.com
✨ Why is Web Perf Undervalued?: Blaine O'Brien
🙏 Special thanks to the authors!
#webperf
November 2, 2025 at 12:41 PM
🎉 WebPerformance Report Week #44 is out! ✅
🔍 Ready for next Week? Don’t miss out!
⚡ Web Performance Report: 👉 webperformancereport.com
🛡️ HTTP Security Report: 👉 webperformancereport.com/httpo/
♿️ A11ty Report: 👉 webperformancereport.com/wave/
#webperf #websecurity #accessibility #A11ty #AI
November 2, 2025 at 12:10 PM
Reposted by WebPerformance Report
Interesting! Etsy implemented speculation rules and got these results:

👍 Time to First Byte on the listing page improved 23.6%
👍 First Contentful Paint improved 20.7%
👍 Largest Contentful Paint improved 21.1%
👍 DOMContentLoaded improved 20.4%

#PerfNow #webperf

www.etsy.com/codeascraft/...
www.etsy.com
October 31, 2025 at 2:32 PM
Reposted by WebPerformance Report
"0 kB of JavaScript is not a feature" - @rich-harris.dev

#perfnow #WebPerf
October 31, 2025 at 4:58 PM
Reposted by WebPerformance Report
📕 The History of Core Web Vitals

👉🏻 Addy tells the story behind Core Web Vitals, a popular set of metrics for measuring Web performance and its impact on user experience.

https://addyosmani.com/blog/core-web-vitals/
November 1, 2025 at 10:00 AM
🎉 New on WebPerformance Report: WAVE Accessibility Report ♿️
In collaboration with WAVE by @webaim.bsky.social, we’re bringing accessibility insights straight to your inbox.
Because a truly performant web must also be an accessible one.
👉 webperformancereport.com/wave
#WebPerf #Accessibility #A11y
WAVE Report | WebPerformance Report
Web Accessibility report every week in your inbox. Reports, Decisions, Results...
webperformancereport.com
October 29, 2025 at 4:46 PM
⚡Featured posts this week:
✨ The History of Core Web Vitals: @addyosmani.bsky.social
✨ Meet our new browser—ChatGPT Atlas: OpenAI
✨ WCAG 2.2 is now ISO/IEC 40500:2025: W3C
✨ Progressive image rendering: @jakearchibald.com
🙏 Special thanks to the authors!
#webperf
October 26, 2025 at 10:46 AM
🎉 WebPerformance Report Week #43 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 #accessibility #A11ty #AI
October 26, 2025 at 10:24 AM
💪The greatest reward comes when those we admire recognize our work.
Thank you, Barry @tunetheweb.com, for your words. They inspire us to keep promoting the culture of Web Performance around the world. ⚡
👉 webperformancereport.com#Testimonials
#WebPerf
October 22, 2025 at 5:49 PM
Sponsorship renewed again ⚡
Thrilled to share that Catchpoint, the company behind #WebPageTest, keeps sponsoring WebPerformance Report for another year.
Together we promote a culture of performance, turning data into clarity, trust, and results.
👉 webperformancereport.com
#WebPerf
October 21, 2025 at 7:24 PM
⚡Featured posts this week:
✨ About WebPerformance Report: Edwin Molina
✨ How Framer reduced LCP using Rolldown: Michael Dong
✨ The Core Web Vitals Tech Report: @httparchive.org
✨ The AI Cloud: Guillermo Rauch
🙏 Special thanks to the authors!
#webperf
October 19, 2025 at 9:52 AM
🎉 WebPerformance Report Week #42 is out! ✅
Join our growing community and subscribe today:
⚡ Web Performance Report: 👉 webperformancereport.com
🛡️ HTTP Security Report: 👉 webperformancereport.com/httpo/
#webperf #corewebvitals #ux #seo #cybersecurity #websecurity #AI
October 19, 2025 at 9:35 AM
After thousands of reports delivered, we understood who we are and what we stand for. ⚡

WebPerformance Report is not just about speed. It is about clarity, trust, and impact. 💙

Discover our vision: 👉 webperformancereport.com/about-us

#WebPerf #WebSecurity #Accessibility #AI
About Us | WebPerformance Report
We believe that performance is not just about speed. It's about trust, accessibility, security, and the overall quality of every digital experience...
webperformancereport.com
October 16, 2025 at 5:16 PM
⚡Featured posts this week:
✨ What's new in Lighthouse 13: @tunetheweb.com
✨ 11ty Hacks for Fun and Performance: @infrequently.org
✨ Launch the React Foundation: @linuxfoundation.org
✨ ShopifyQL is now in the Admin API: Shopify
🙏 Special thanks to the authors!
#webperf
October 12, 2025 at 10:03 AM
🎉 WebPerformance Report Week #41 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 #AI
October 12, 2025 at 9:37 AM
Reposted by WebPerformance Report
We’ve just released some shiny new docs for the Insights so you’ll know exactly what they measure and how to pass them. Check them out:

developer.chrome.com/docs/perform...
Performance  |  Chrome for Developers
developer.chrome.com
October 7, 2025 at 8:03 PM
Reposted by WebPerformance Report
I mentioned before that we’re switching Lighthouse Performance audits to the new and improved Insights. The same Insights that you can see in DevTools Performance panel traces.

That’s happening in Lighthouse 13 due to be released very soon. Maybe even this week!
October 7, 2025 at 8:02 PM
🚀 Exciting update from WebPerformance Report!
Every WebPageTest report now includes an AI Insight✨, a concise executive summary built with #Gemini by Google.
Our mission: make web performance data understandable and actionable for everyone.
Try it yourself 👉 webperformancereport.com
#webperf #AI
October 5, 2025 at 7:22 PM
⚡Featured posts this week:
✨ How to enrich RUM data in Datadog: @gokberknur.bsky.social
✨ Time to Brand Identity: @duffeh.bsky.social
✨ Core Web Vitals mystery: @tunetheweb.com
✨ Safari Tech Preview now supports INP: Apple
🙏 Special thanks to the authors!
#webperf
October 5, 2025 at 6:27 PM