The State of Web Vitals

CLS distribution

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

Field data PhoneDesktopAll Scope All sites October 2026 edition · Desktop field outcomes
1

At a glance the headline numbers for CLS distribution

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

77.9%
of sites pass CLS
0.03
Typical site
0.22
Worst 10% of sites

77.9% of sites pass CLS. The typical site's CLS is 0.03. The worst 10% are above 0.22.

The State of Web Vitals · October 2026 · 210,902 crawled sites · desktop field datacorewebvitals.io/state-of-cwv
2

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

0 8,368 16,737 25,105 33,473
0–0.02533,473 sites48% of all sites
0.025–0.058,320 sites11.9% of all sites
0.05–0.0757,661 sites11% of all sites
0.075–0.13,454 sites5% of all sites
0.1–0.1253,765 sites5.4% of all sites
0.125–0.152,671 sites3.8% of all sites
0.15–0.1751,277 sites1.8% of all sites
0.175–0.21,033 sites1.5% of all sites
0.2–0.2251,275 sites1.8% of all sites
0.225–0.25681 sites1% of all sites
0.25–0.275856 sites1.2% of all sites
0.275–0.3735 sites1.1% of all sites
0.3–0.325439 sites0.6% of all sites
0.325–0.35501 sites0.7% of all sites
0.35–0.375304 sites0.4% of all sites
0.375–0.4265 sites0.4% of all sites
0.4 and up2,991 sites4.3% of all sites
p50 = 0.03
p75 = 0.09
p90 = 0.22
p99 = 0.77
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: 69,701 sites

Most sites pass CLS. 77.9% sit at or under 0.10. The typical site is at 0.03, and 75% of sites stay under 0.09. Only 22.1% fail CLS. The worst 10% are above 0.22, and the worst 1% are above 0.77.

The State of Web Vitals · October 2026 · 210,902 crawled sites · desktop field datacorewebvitals.io/state-of-cwv
3

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

CLS
77.9%
13.7%
8.3%
Good Needs Improvement Poor

77.9% of sites pass CLS. 13.7% are in the needs improvement band, between 0.1 and 0.25. 8.3% are poor, above 0.25. Misses split about evenly between the two.

The State of Web Vitals · October 2026 · 210,902 crawled sites · desktop field datacorewebvitals.io/state-of-cwv
4

Why this matters for the Core Web Vitals, and where to start fixing it

Cumulative Layout Shift measures how much the page moves around while it loads. A button jumps just as someone goes to tap it, an ad pushes the article down, the text reflows when a late font arrives. Every one of those is a layout shift, and they add up into a score that reflects how stable the page feels. Unlike the other vitals, CLS is rarely about speed and almost always about reserving space.

Start by giving everything that loads late a place to land. Set width and height on images and video so the browser reserves the box before the file arrives. Reserve space for ads, embeds and banners instead of letting them push content. Load fonts so the fallback and the web font take the same room, and keep animations on transform rather than properties that trigger layout.

How are sites doing on CLS?

77.9% of sites have a good CLS. The typical site sits at 0.09 at the 75th percentile; the worst 1% reach 0.77.

Go fix it Fix layout shift from auto-sizing images → Layout shift from CSS transitions → Keep text visible during font load →
Related signals INP → TTFB → LCP → FCP → 210,902 crawled sites with Chrome field data, representing millions of real page loads · How we measured