Here's what real data says about how Core Web Vitals correlate with search traffic.
Based on analysis of 105,912 pages · Last 30 days
| Metric | Good | Needs Improvement | Poor |
|---|---|---|---|
|
LCP
Largest Contentful Paint (LCP)
|
< 2.5s | 2.5s - 4.0s | > 4.0s |
|
CLS
Cumulative Layout Shift (CLS)
|
< 0.1 | 0.1 - 0.25 | > 0.25 |
|
INP
Interaction to Next Paint (INP)
|
< 200ms | 200ms - 500ms | > 500ms |
|
FCP
First Contentful Paint (FCP)
|
< 1.8s | 1.8s - 3.0s | > 3.0s |
|
TTFB
Time to First Byte (TTFB)
|
< 0.8s | 0.8s - 1.8s | > 1.8s |
|
FID
First Input Delay (FID)
|
< 100ms | 100ms - 300ms | > 300ms |
|
SI
Speed Index
|
< 3.4s | 3.4s - 5.8s | > 5.8s |
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