Calculate Cumulative Layout Shift (CLS) score. Good: ≤0.1; Needs improvement: 0.1–0.25; Poor: >0.25. CLS measures unexpected visual shifts of page content during load.
Enter the values for the scenario you are assessing. Calculate Cumulative Layout Shift (CLS) score. Good: ≤0.1; Needs improvement: 0.1–0.25; Poor: >0.25. CLS measures unexpected visual shifts of page content during load. Use the cls threshold (core web vitals) result to inform your calculation.