The State of Web Vitals

CLS distribution React sites

How CLS is distributed across real-user data, plus pass-rate breakdown.

Field data PhoneDesktopAll Scope All sites October 2026 edition · All devices field outcomes · React sites only
React Scoped to 9,570 sites out of 210,902 analyzed (frameworks) Compare with all sites →
1

At a glance the headline numbers for CLS distribution

How CLS is distributed across real-user data, plus pass-rate breakdown.

91.8%
of sites pass CLS
0.00
Typical site
0.08
Worst 10% of sites

91.8% of sites pass CLS. The typical site's CLS is 0.00. The worst 10% are above 0.08.

The State of Web Vitals · October 2026 · React sites (9,570) · all devices field datacorewebvitals.io/state-of-cwv
2

The CLS distribution site count at each CLS, from good to poor

0 1,853 3,706 5,558 7,411
0–0.0257,411 sites81.5% of all sites
0.025–0.05397 sites4.4% of all sites
0.05–0.075315 sites3.5% of all sites
0.075–0.1163 sites1.8% of all sites
0.1–0.125150 sites1.7% of all sites
0.125–0.15123 sites1.4% of all sites
0.15–0.17546 sites0.5% of all sites
0.175–0.247 sites0.5% of all sites
0.2–0.22552 sites0.6% of all sites
0.225–0.2537 sites0.4% of all sites
0.25–0.27546 sites0.5% of all sites
0.275–0.341 sites0.5% of all sites
0.3–0.32549 sites0.5% of all sites
0.325–0.3545 sites0.5% of all sites
0.35–0.37516 sites0.2% of all sites
0.375–0.412 sites0.1% of all sites
0.4 and up138 sites1.5% of all sites
p50 = 0.00
p75 = 0.01
p90 = 0.08
p99 = 0.47
0–0.025 0.025–0.05 0.05–0.075 0.075–0.1 0.1–0.125 0.125–0.15 0.15–0.175 0.175–0.2 0.2–0.225 0.225–0.25 0.25–0.275 0.275–0.3 0.3–0.325 0.325–0.35 0.35–0.375 0.375–0.4 0.4+
Good (≤0.10) Needs improvement Poor (>0.25) Percentile markers Total: 9,088 sites

Most sites pass CLS. 91.8% sit at or under 0.10. The typical site is at 0.00, and 75% of sites stay under 0.01. Only 8.2% fail CLS. The worst 10% are above 0.08, and the worst 1% are above 0.47.

The State of Web Vitals · October 2026 · React sites (9,570) · all devices field datacorewebvitals.io/state-of-cwv
3

The CLS pass rate the share of sites that are good, needs improvement and poor

CLS
91.8%
3.6%
Good Needs Improvement Poor

91.8% of sites pass CLS. 4.6% are in the needs improvement band, between 0.1 and 0.25. 3.6% are poor, above 0.25. Misses split about evenly between the two.

The State of Web Vitals · October 2026 · React sites (9,570) · all devices field datacorewebvitals.io/state-of-cwv
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