Is Cumulative Layout Shift a consideration while the page is still visibly loading?

1. What causes cumulative layout shift?
2. What affects cumulative layout shift?
3. Why is cumulative layout shift bad?
4. What is a cumulative layout shift?

What causes cumulative layout shift?

What is Cumulative Layout Shift (CLS)? Cumulative layout shift is a measure of how much the layout of a page shifts while loading. Page layouts shift because different elements of a page may load at different speeds, altering the user's page view as they do so.

What affects cumulative layout shift?

Cumulative Layout Shift is caused by content changing dimensions, or new content being injected into the page by late running JavaScript.

Why is cumulative layout shift bad?

Cumulative Layout Shift is a ranking factor in Google as it affects the website's performance and user experience. It is one of the Core Web Vitals metrics, and Google can penalize a site that does not meet its standard. A poor CLS score indicates that a website is unreliable, which can cause visitors to leave faster.

What is a cumulative layout shift?

What is Cumulative Layout Shift? Cumulative Layout Shift (or CLS) is a measure of how much a webpage unexpectedly shifts during its life. For example, if a website visitor loaded a page and, while they were reading it, a banner loads and the page jumps down, that would constitute a large CLS score.