Vitality Pt. 4 — Cumulative Layout Shift (CLS)

Navigating the world of Core Web Vitals can sometimes feel like deciphering a secret code — one where understanding the nuances can make or break your website’s performance. With Google’s ever-evolving standards, mastering these metrics is not just nice-to-have, it’s crucial for every developer aiming for peak site performance.

Welcome to the fourth session of Vitality: A 5-Part Webinar Series Decoding Core Web Vitals, hosted by Kyle Van Deusen with our expert, Brian Jackson from Perfmatters. This session zeroes in on a metric that directly impacts user experience by measuring visual stability — Cumulative Layout Shift (CLS).

Why CLS? CLS measures the frequency and magnitude of unexpected layout shifts on your page. High CLS can frustrate users and lead to lower engagement, making it vital to address.