%% date:: [[2023-04-27]] parent:: %% # [[Cumulative Layout Shift (CLS)]] [docs](https://web.dev/cls/) CLS is a metric that is part of [[Core Web Vitals]], and it measures the visual stability of a page. It pays attention to when [[DOM]] elements move on a page and assigns each move, or shift, a score to quantify how drastic the shift was. ![[core-web-vitals-cls.png]] [^corewebvitals] [^corewebvitals]: Google. *First Input Delay*. Retrieved on April 27th, 2023 from https://web.dev/fid/