Cumulative layout shift (CLS) is a metric used to gauge the extent of page layout movement during the loading process. This shift occurs because various elements on a page may load at varying speeds, resulting in changes to the user’s view of the page. For instance, a slowly loading advertisement or video can displace a previously loaded section of readable content once it loads, leading to a significant CLS change.
Our tech staff and AdOps are formed by the best AdTech and MarTech industry specialists with 10+ years of proven track record!