概要
This skill provides a structured framework for developers to measure, analyze, and dramatically improve the performance of websites and web applications. It guides users through the entire optimization lifecycle—from establishing baseline metrics with Lighthouse and identifying render-blocking resources to implementing high-impact solutions like code splitting, image modernization (WebP/AVIF), and critical rendering path tuning. By focusing on Core Web Vitals and runtime efficiency, it helps developers improve SEO rankings, reduce bounce rates, and deliver a seamless user experience across all devices and network conditions.
