Desarrolla y mantiene los proyectos web. Escribe sobre arquitectura front-end, rendimiento, accesibilidad y las partes menos vistosas de mantener vivo un sitio.
531 articles
The European Union law that sets accessibility requirements for many products and services sold to EU consumers, including e-commerce, banking and e-books. Key...
An Accessibility Conformance Report documents how a product meets accessibility standards, and the VPAT is the widely used template for writing one. Key takeawa...
Making PDF documents usable with assistive technology through tags, reading order, alternative text, bookmarks and language settings. Key takeaways Standard: PD...
Making native iOS and Android apps usable with screen readers, larger text, voice control and switch access, using the accessibility features each platform prov...
Building marketing and transactional emails that work with screen readers, zoom and high-contrast settings, and that still make sense when images are blocked. K...
The time from when a page starts loading until the browser renders the first text, image or other content, the moment a visitor first sees that something is hap...
A lab metric that adds up how long the main thread was blocked by long tasks between the first paint and the page becoming reliably interactive. Key takeaways L...
The difference between performance measured in a controlled test, such as Lighthouse, and performance measured from real visitors' devices and connections....
A public dataset of real-user performance measurements collected from Chrome users who have opted in, reported for origins and popular URLs. Key takeaways Data...
Google's free tool that reports real-user Core Web Vitals from the Chrome UX Report alongside a Lighthouse lab test for a given URL. Key takeaways Field se...
The browser's main thread handles layout, painting and most JavaScript, and any single task that runs for more than 50 milliseconds blocks it from respondi...
Background threads that run JavaScript separately from the page's main thread, used for heavy computation such as parsing data, image processing or search...
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