@WebPerfReport

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

webperformancereport.com/
Joined May 2021
  • Tweets5K
  • Following2.1K
  • Followers706
608Media
We gave Claude Opus 5.5 an article we wrote a few months ago and asked it to turn it into an animation.👇 📖 The Anatomy of a Web Performance Report calendar.perfplanet.com/2025… Thanks for the idea, @addyosmani ! #AI #ClaudeAI #WebPerf
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Something greener is coming to WebPerformance Report. 🌱 We've wanted to bring sustainability reporting to WPR for quite some time. Using data and tools from The Green Web Foundation, we're making it happen! 🌍 More soon! 👀
Coming soon: WebPerformance Report's new Website Carbon Footprint Report. A preview of sustainability metrics, estimated CO₂ emissions, carbon ratings, website efficiency, and green hosting information, using data and tools from The Green Web Foundation and CO2.js.

ALT Coming soon: WebPerformance Report's new Website Carbon Footprint Report. A preview of sustainability metrics, estimated CO₂ emissions, carbon ratings, website efficiency, and green hosting information, using data and tools from The Green Web Foundation and CO2.js.

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webperformancereport.com/htt…

HTTP Observatory Report | WebPerformance Report

HTTP Header Security every week in your inbox. Reports, Decisions, Results...

webperformancereport.com
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❤️ A simple wishlist. A serious security threat. ⚠️ How can a third-party Shopify app turn into a checkout hijacking attack? We explain it in 60 seconds. 🎬 #WebSecurity #Shopify #CyberSecurity
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⚠️ @Shopify stores targeted by an ongoing checkout hijacking campaign. Malicious redirects through third-party apps can send customers to fake checkout pages designed to steal payment information. Details & updates: romanzipp.com/blog/shopify-h…

Shopify shops hit with ongoing Checkout Hijack attack

Shopify shops are being hit with a checkout hijack campaign through HulkApps/Swym/Selleasy Shopify extensions.

romanzipp.com
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github.com/WebPerformanceRep…

wpr-perf-links/2026/perf-links.md at main · WebPerformanceReport/wpr-perf-links

Curated links about Web Performance, used in the Perf Links section of WebPerformance Report. - WebPerformanceReport/wpr-perf-links

github.com
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⚡Featured posts this week: ✨ How Swedish sites LCP changes with soft navs: @gernberg ✨ Experimental soft navs in CrUX: @anniesullie ✨ Unload event deprecated: @tunetheweb Fergal Daly ✨ JPEG XL vs AVIF for web: @jaffathecake 🙏Special thanks to the authors! #webperf
WebPerformance Report performance email preview highlighting optimization scores, Perf Links, and Core Web Vitals metrics on a colorful gradient background.

ALT WebPerformance Report performance email preview highlighting optimization scores, Perf Links, and Core Web Vitals metrics on a colorful gradient background.

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🎉 WebPerformance Report Week #42 is out! ✅ Join our growing community: ⚡ Performance Report 🛡️ Security Report ♿ Accessibility Report 📊 Analytic Report 🔎 SEO Report Explore our report catalog 👉 webperformancereport.com/#Ca… #webperf #websecurity #a11y #analytics #seo #ai
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From your inbox to motion: anthropic.com ✨ Four weeks of Web Performance reports, transformed into a visual story. Ready to see how your website performs? Get your reports delivered straight to your inbox. 🚀 👉 webperformancereport.com #WebPerf
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github.com/WebPerformanceRep…

wpr-perf-links/2026/perf-links.md at main · WebPerformanceReport/wpr-perf-links

Curated links about Web Performance, used in the Perf Links section of WebPerformance Report. - WebPerformanceReport/wpr-perf-links

github.com
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⚡Featured posts this week: ✨ How fast is the web?: @RyanTownsend @nicj ✨ Measuring back/forward: @logaretm ✨ SEOs Not Responsible For Agentic Web: @joehall ✨ Shipping JPEG XL Chrome: @LucaVersari3 @MoritzFirsching @foolip 🙏 Special thanks to the authors! #webperf
WebPerformance Report performance email preview highlighting optimization scores, Perf Links, and Core Web Vitals metrics on a colorful gradient background.

ALT WebPerformance Report performance email preview highlighting optimization scores, Perf Links, and Core Web Vitals metrics on a colorful gradient background.

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🎉 WebPerformance Report Week #41 is out! ✅ Join our growing community: ⚡ Performance Report 🛡️ Security Report ♿ Accessibility Report 📊 Analytic Report 🔎 SEO Report Explore our report catalog 👉 webperformancereport.com/#Ca… #webperf #websecurity #a11y #analytics #seo #ai
Five WebPerformance Report email examples showing web performance, accessibility, security, analytics and SEO reports on a colorful gradient background.

ALT Five WebPerformance Report email examples showing web performance, accessibility, security, analytics and SEO reports on a colorful gradient background.

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Our reports are already being prepared for Sunday. 🌙 Performance, Accessibility, Security, SEO and Analytics reports, delivered to your inbox every week. Good news: you’re still on time. Sign up today and get your first report this Sunday. 👉 webperformancereport.com/
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claude.ai/artifact/4TeL3DToY…

anthropic.com Load Story

How anthropic.com loads on a phone

claude.ai
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github.com/WebPerformanceRep…

wpr-perf-links/2026/perf-links.md at main · WebPerformanceReport/wpr-perf-links

Curated links about Web Performance, used in the Perf Links section of WebPerformance Report. - WebPerformanceReport/wpr-perf-links

github.com
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⚡Featured posts this week: ✨ Improving site perf by shipping more CSS: @__joshblack ✨ How AI Agents Use Websites: @giacomozecchini ✨ Chasing the Perfect Website: Morgan Murrah ✨ Perf at Scale with Ryan Townsend: @RyanTownsend 🙏 Special thanks to the authors! #webperf
WebPerformance Report performance email preview highlighting optimization scores, Perf Links, and Core Web Vitals metrics on a colorful gradient background.

ALT WebPerformance Report performance email preview highlighting optimization scores, Perf Links, and Core Web Vitals metrics on a colorful gradient background.

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🎉 WebPerformance Report Week #40 is out! ✅ Join our growing community: ⚡ Performance Report 🛡️ Security Report ♿ Accessibility Report 📊 Analytic Report 🔎 SEO Report Explore our report catalog 👉 webperformancereport.com/#Ca… #webperf #websecurity #a11y #analytics #seo #ai
Five WebPerformance Report email examples showing web performance, accessibility, security, analytics and SEO reports on a colorful gradient background.

ALT Five WebPerformance Report email examples showing web performance, accessibility, security, analytics and SEO reports on a colorful gradient background.

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Last day of Oktoberfest. SEO still on. 😂🍻
🤖 Made with AI
iPhone displaying a WebPerformance Report Google Search Console performance summary at Oktoberfest, with a beer stein, pretzel, and festive lights in the background.

ALT iPhone displaying a WebPerformance Report Google Search Console performance summary at Oktoberfest, with a beer stein, pretzel, and festive lights in the background.

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webperformancereport.com/blo…

The Technical Diagnostics and Business Outcomes Gap

Technical diagnostics and business outcomes describe the same website. Why connecting them matters more than collecting another metric.

webperformancereport.com
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The Technical Diagnostics and Business Outcomes Gap When tools do not connect, people do. And too often, senior specialists become human APIs between disconnected systems. Full article in the comments 👇 #WebPerf #Data #Ecommerce
Technical diagnostic signals and business outcome signals shown as two sides of the same website, separated by a gap in interpretation.

ALT Technical diagnostic signals and business outcome signals shown as two sides of the same website, separated by a gap in interpretation.

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