February 2026
Intermediate to advanced
256 pages
8h 40m
Spanish
Content preview from Ingeniería del rendimiento web en la era de la IA (Spanish Edition)
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Capítulo 5. Dentro del navegador: cómo se cargan y se representan las páginas
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Hasta ahora, en este libro has aprendido por qué el rendimiento web es crucial para la experiencia del usuario y el éxito empresarial, y te has familiarizado con métricas clave como Core Web Vitals. En este capítulo, paso a tratar los fundamentos técnicos. Para optimizar de manera efectiva la velocidad de carga, la interactividad y la estabilidad visual, primero necesitas comprender bien cómo funcionan los navegadores. Este capítulo se adentra en el proceso que siguen navegadores como Chrome cuando transforman el código y los recursos en una página interactiva completamente renderizada. Estos conocimientos sentarán las bases para las estrategias de optimización específicas que se analizan en los capítulos siguientes.
Conceptos básicos sobre los navegadores
Los navegadores web modernos son increíblemente sofisticados. Analizan el HTML, cargan recursos como scripts, estilos e imágenes, ejecutan JavaScript, calculan estilos y diseños, y pintan píxeles en la pantalla, todo ello mientras responden a las entradas del usuario e intentan mantener la fluidez de las animaciones. Para optimizar el rendimiento, es fundamental comprender los pasos que sigue el navegador y cómo acelerar o bloquear esos pasos. Este capítulo desmitifica el proceso de renderización del navegador, así como el funcionamiento ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.