@WebPerfReport

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

webperformancereport.com/
Joined May 2021
  • Tweets5K
  • Following2.1K
  • Followers706
609Media
Replying to @googlechrome
@googlechrome just retired the unload event. For years it ran a page’s goodbye code. But it often never ran on phones, and it blocked the instant Back button. Since Chrome 155, it no longer runs by default. Is your site still using it? Sources in the comments. 👇 #WebPerf
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Source: developer.chrome.com/blog/un…

Unload event deprecated in Chrome  |  Blog  |  Chrome for Developers

Unload event deprecated in Chrome

developer.chrome.com
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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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❤️ 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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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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⚠️ @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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⚡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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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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🎉 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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⚡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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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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🎉 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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Replying to @AnthropicAI
@AnthropicAI: A Load Story We turned anthropic.com's latest performance report into a cartoon. One character spends 3 seconds ignoring your taps. 🙈 What's stopping you from animating your report? 👉 lnkd.in/dMNCJ7H7 Interactive version in the comments.
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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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⚡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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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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🎉 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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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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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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