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🇺🇸 Experts in web performance, we help you to solve performance issues 🇪🇸 Expertos en web performance, te ayudamos a solucionar problemas de rendimiento

Spain
Joined December 2018
Photo by PerfReviews ⚡️ (@PerfReviews_)Photo by PerfReviews ⚡️ (@PerfReviews_)Photo by PerfReviews ⚡️ (@PerfReviews_)Photo by PerfReviews ⚡️ (@PerfReviews_)Photo by PerfReviews ⚡️ (@PerfReviews_)Photo by PerfReviews ⚡️ (@PerfReviews_)Photo by PerfReviews ⚡️ (@PerfReviews_)Photo by PerfReviews ⚡️ (@PerfReviews_)Photo by PerfReviews ⚡️ (@PerfReviews_)Photo by PerfReviews ⚡️ (@PerfReviews_)
PerfReviews ⚡️ retweeted
🎉WebPerformance Report Week #34 is out!✅ Join our growing community: ⚡Performance Report: webperformancereport.com 🛡️Security Report: webperformancereport.com/htt… ♿A11y Report: webperformancereport.com/wav… 📊Analytic Report: DM early access 🔎 SEO Report: Coming Soon #webperf
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PerfReviews ⚡️ retweeted
Five reports. Five dimensions. One place. ✨ We’re just a few days away from launching our new Google Search Console Report. With SEO, our 360° reporting vision now covers: ⚡ Performance 🔐 Security ♿ Accessibility 📊 Analytics 🔎 SEO Coming soon. 🚀 #webperf #SEO #UX
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PerfReviews ⚡️ retweeted
It seems that I get very intense when I talk about Web Performance 😂 Photo of last week’s talk in the @commitconf
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PerfReviews ⚡️ retweeted
The YAML frontmatter in @antigravity Skills has 5 fields that change everything: kind, model, temperature, max_turns, and tools. Google hasn't documented them officially yet. I've been testing them in real projects and wrote up what each one does. joanleon.dev/en/antigravity-… #AI #AgentSkills #Gemini #Antigravity
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Llevo tiempo viendo demos de multiagentes y casi todas sufren de lo mismo: un agente escribe y otro revisa... para acabar haciendo una todo-app No son malas demos, pero no hay un motivo técnico real para dividirlas en agentes. Así no aprendemos cuándo sí tiene sentido Abro hilo con una alternativa 👇
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PerfReviews ⚡️ retweeted
Llevo tiempo viendo demos de multiagentes y casi todas sufren de lo mismo: un agente escribe y otro revisa... para acabar haciendo una todo-app No son malas demos, pero no hay un motivo técnico real para dividirlas en agentes. Así no aprendemos cuándo sí tiene sentido Abro hilo con una alternativa 👇
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PerfReviews ⚡️ retweeted
“Most teams fall into a reactive performance decay cycle: ship, wait for complaints, panic, patch, repeat. The Fast by Default model provides a repeatable alternative that keeps systems healthy.” Performance Engineering in Practice, by @denodell #WebPerf #Performance
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PerfReviews ⚡️ retweeted
Google announced the new Lighthouse agentic browsing category at Google I/O yesterday! It validates WebMCP integrations, LLMs.txt files, and if the accessibility tree is readable, ... Test your own website here: debugbear.com/test/website-g…
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Web Performance + Agentes de IA ⚡️🤖 = 🚀
¿Buscas optimizar el rendimiento de tus aplicaciones usando agentes de IA? En este workshop aprenderás a conectar el Google Chrome DevTools MCP a un agente para automatizar la detección de problemas. Veremos cómo generar reportes automáticos con tres enfoques clave: técnicos, de cliente y de management. 👇 ¡Inscríbete aquí! #WebPerf #Training #PerfTools #GoogleChrome #AI #MCP
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PerfReviews ⚡️ retweeted
We've released the new DebugBear RUM alert landing pages! You can now easily see what budget triggered the alert, how often that budget was breached recently, and review what changes impacted your metrics!
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Web Performance + Agentes de IA ⚡️🤖 = 🚀
¿Buscas optimizar el rendimiento de tus aplicaciones usando agentes de IA? En este workshop aprenderás a conectar el Google Chrome DevTools MCP a un agente para automatizar la detección de problemas. Veremos cómo generar reportes automáticos con tres enfoques clave: técnicos, de cliente y de management. 👇 ¡Inscríbete aquí! #WebPerf #Training #PerfTools #GoogleChrome #AI #MCP
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PerfReviews ⚡️ retweeted
🆕 April 2026 CrUX BigQuery data is live on Treo: treo.sh/
🚀 Treo Site Speed Update: Page-level CrUX data, 2 years of history, and a Free Plan. What's new: • Page-level CrUX report: Real-user metrics for individual pages. • Multi-page reports: Track up to 10 specific URLs in a single report. • Free Plan: Save and monitor your reports for free. • 2 years of BigQuery data: Treo is known for the best origin-level report, and now you can access 2 years of history. • Treo Scan Lite: Auto-discover your top 10 URLs and instantly check their metrics. • UI updates: We kept our signature clean design and made it even better. Test your site: treo.sh/sitespeed
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PerfReviews ⚡️ retweeted
Make sure to only preload fonts that are actually needed on your website! Preloading fonts can improve page speed and reduce layout shift. However, they it can also take bandwidth away from critical resources. Learn more: debugbear.com/blog/preload-w…
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PerfReviews ⚡️ retweeted
¿Buscas optimizar el rendimiento de tus aplicaciones usando agentes de IA? En este workshop aprenderás a conectar el Google Chrome DevTools MCP a un agente para automatizar la detección de problemas. Veremos cómo generar reportes automáticos con tres enfoques clave: técnicos, de cliente y de management. 👇 ¡Inscríbete aquí! #WebPerf #Training #PerfTools #GoogleChrome #AI #MCP
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
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I built a tool to run performance audits without touching DevTools Paste a URL → get a structured report. Fonts, images, CSS overhead, LCP Subparts, TTFB Pro accounts get full history to track improvements over time perf.reviews/insights #WebPerf #CoreWebVitals #PerfTools
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PerfReviews ⚡️ retweeted
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
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PerfReviews ⚡️ retweeted
I've added a new snippet to WebPerf Snippets: Forced Synchronous Layout Detector Run it in DevTools, trigger the interaction, and get a real-time warning with the property, element, and stack trace every time FSL hits webperf-snippets.nucliweb.ne… #WebPerf #Performance #JavaScript #DevTools #WebPerfSnippets
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PerfReviews ⚡️ retweeted
I've finished the WebGPU in the browser series. 4 articles: fundamentals, image processing, real-time ML, and video editing. Never written a shader before starting. In the last article we process video at 2ms per frame with WebGPU + WebCodecs. joanleon.dev/en/webgpu-brows… #WebPerf #JavaScript #WebGPU
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