Panel Discussion: Get to Know: Web Performance and Core Web Vitals

3 authors

FAQ

Core Web Vitals are a set of metrics provided by Google to help measure and enhance user experience on websites. They include Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), and First Input Delay (FID). These metrics help developers identify and optimize the most impactful aspects of site performance, such as load time, visual stability, and interactivity.

Next-gen image formats like WebP, AVIF, and JPEG XL offer improved compression compared to traditional formats such as JPEG and PNG. These formats help reduce the file size of images without losing quality, leading to faster load times and better performance, especially important for visually rich websites.

JavaScript frameworks like Next.js, Gatsby, and Angular provide built-in tools and features to enhance performance. These include automatic image optimization, lazy loading of components and images, and efficient data fetching strategies. By using these frameworks, developers can ensure their websites are fast, responsive, and efficient.

To improve performance on media-heavy sites, developers should optimize media files by choosing the right format, compressing images and videos, and using lazy loading for non-critical media. Tools like preload for critical assets and responsive image techniques also enhance media performance without sacrificing quality.

Tools like Lighthouse, Chrome User Experience Report, and Web Vitals library are recommended for monitoring and improving web performance. These tools help analyze a website's performance in both lab and real-world settings, providing insights and actionable recommendations to enhance user experience.

Web performance refers to how quickly and efficiently a website loads and operates. It is crucial because it affects accessibility, ensuring that people with different network qualities and device capabilities can access and use the site effectively. Good web performance improves user experience and accessibility, especially in regions with poor internet connectivity or less powerful devices.

Tamas Piros

Cassidy Williams

Houssein Djirdeh

31 min

14 May, 2021

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