Joan León 🏞️⚡️ @nucliweb
⚡️ Web Performance Artisan at @perfreviews_ | @GoogleDevExpert in #WebTech | @cloudinary Ambassador nucliweb.net Girona, Catalunya Joined August 2008-
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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/#Catalog #webperf #websecurity #a11y #analytics #seo #ai
From population models to personalized AI! How can we build digital twins tailored to individuals? Join #GDGGirona on Oct 22 for a live demo exploring generative deep learning, transfer learning & personalized healthcare 👉 gdg.community.dev/events/details… #AI #MachineLearning
And a new domain: webperf-snippets.net If you try it, I'd like to hear what's missing
Also new: 17 interactive demos, the browser support of each snippet, and a DevTools extension in beta. webperf-snippets.net/extension
In 2023 I published WebPerf Snippets as a website, with snippets to paste into the DevTools console Version 2.0 is also built for AI agents: every snippet returns the same structured result, so an agent reads data instead of console logs webperf-snippets.net 🧵 #WebPerf #AI
Google's CrUX data now includes more nuanced Core Web Vitals metrics for single page apps! You can check the new soft navigation metrics in our website speed test here: debugbear.com/test/website-s…
The Split View API is here! Arriving in Chrome 155 and developed in close collaboration with Mozilla and browser vendors in the WebExtensions Community Group, this API integrates directly into the browser.tabs namespace without requiring any extra manifest permissions → goo.gle/47fdSOW
Es todo un lujo poder formar parte de @a11y_conf como ponente, donde hablaré de "El árbol de accesibilidad frágil: por qué el HTML semántico es clave para el rendimiento web" 🎟️ Aprovecha ahora que quedan entradas!!! 2026.a11yconf.com/entradas/ #a11y #WebPerf #a11yConf
🎉 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/#Catalog #webperf #websecurity #a11y #analytics #seo #ai
During a perf audit for a client, I read this in a PR: "The module should only be loaded once, not every time a file is selected." When I read it, something didn't add up, so I started digging. And the result surprised me. I wrote a post joanleon.dev/en/dynamic-imp… #JS #WebPerf
⚡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
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
Ep, vengo a dar un poco de autobombo a una idea que llevo un tiempo usando yo solo. Trabajando en empresas donde el español no es la lengua principal, a veces pasa que, ya sea por falta de contexto o por diferencias culturales a la hora de expresarse, cuesta un poco entender a qué se está refiriendo un compañero cuando te explica algo o te da feedback. Muchas veces hago follow-up y pregunto para asegurarme de no malinterpretar nada, pero otros días simplemente mi coco no da para más y acabo usando ChatGPT para que me diga por dónde van los tiros. Así que hace un mes o así creé Entiendo. Haces highlight de cualquier texto y puedes preguntarle rápidamente a GPT qué cree que quiere decir, si puede haber un segundo sentido o, si la conversación está escalando, cómo desescalarla. Es 100% gratis, usa el sign-in de ChatGPT (dios les bendiga) y no guardo absolutamente nada de info de la conversación. Está en castellano, inglés y catalán. Pero entiende cualquier idioma por el que pidais feedback. Si la queréis probar: madebysignal.dev/es/entiendoapp
DebugBear updates for September: 🏄 View Baseline feature support for your visitors 🛒 Ad performance metrics from Google's CrUX Report 📈 Even more customizable custom dashboards debugbear.com/changelog/sept…
One thing I’m experimenting with for a performance audit: Using RUM data + @DebugBear MCP to build synthetic tests based on how the product is actually used RUM → real user behaviour → MCP → representative synthetic tests debugbear.com/docs/mcp #WebPerf #RUM #MCP
And thank you to @carlesnunez too for the @framer sticker ☺️
Thank you to @andrey_sitnik for the @evilmartians sticker ☺️
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