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JavaScript Jabber
Opinionated Core Web Vitals - JSJ 647
Sep 3, 2024
Dan Shappir, a web performance specialist, joins Aimee, a contributor to performance tools, and AJ, a web development enthusiast. They dive into the critical importance of Core Web Vitals and how Google is pushing for faster web experiences. The conversation covers practical strategies to optimize metrics like Largest Contentful Paint and First Input Delay. The trio also shares insights on the significance of visual stability and the challenges of using real-user data, offering a comprehensive look at improving web performance.
01:10:35
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Quick takeaways
- Core Web Vitals consist of LCP, FID, and CLS, which are crucial for measuring website performance and user experience.
- Google's focus on Core Web Vitals aims to align site performance with user engagement, benefiting both users and Google's advertising revenue.
Deep dives
Understanding Core Web Vitals
Core Web Vitals are essential performance metrics defined by Google to enhance user experience on the web. They consist of three main metrics: Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS). LCP measures how quickly the largest visible content element loads, while FID captures the responsiveness of a page to user interactions. CLS assesses how stable a page is while loading, ensuring that users don't experience unexpected shifts in layout that could disrupt their engagement.
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