CLS (Cumulative Layout Shift)

Cumulative Layout Shift (CLS) is a Google metric that measures the visual stability of a web page and is part of the Core Web Vitals.

It refers to the amount of unexpected movement of elements on a page while it is loading: a high CLS score indicates that page elements move significantly while loading, which can be frustrating for users.

Improving CLS can lead to a better user experience and can also impact page ranking.