Website Performance
What's a good Cumulative Layout Shift?
A good Cumulative Layout Shift for a local business is 0.10 or lower. Measures unexpected layout shifts during page load. An excellent Cumulative Layout Shift — the top tier Karbon Agency grades client campaigns against — is 0.05 or lower, while 0.25 marks the minimum acceptable tier.
The three tiers Karbon grades against
| Tier | Value | What it means |
|---|---|---|
| Minimum | 0.25 | The floor. Below this, something is broken. |
| Recommended | 0.10 | The tier a healthy campaign should hit. |
| Excellent | 0.05 | Top-tier performance worth defending. |
Lower is better for this metric.
Why Cumulative Layout Shift matters
Layout shifts cause misclicks and erode trust. A CLS above 0.25 means users are literally clicking the wrong buttons because elements jump around.
Where does your Cumulative Layout Shift land?
Karbon Agency grades every client campaign against these exact tiers, live on a dashboard — no guessing, no quarterly PDFs.