The State of Web Vitals

Layout shift count and the Core Web Vitals

32.1% of audited sites (66,238) record zero lab layout shifts and reach 93% good field CLS, while 39.7% have 1 to 2 shifts (91% good CLS) and the 13.1% triggering 6 or more shifts drop to 79% good CLS.

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

One in three sites, 32.1%, have no layout shift count. Of the 67.9% that do, 59% use 1 to 2 layout shifts, and 91% of those sites have a good CLS, against 89% of all sites.

The State of Web Vitals · October 2026 · 210,902 crawled sites · 126,761 with phone field data · 206,118 sites with layout shift countBy Arjen Karel · corewebvitals.io/state-of-cwv
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CLS pass rate

Sites with 1 to 2 layout shifts layout shift count have a good CLS most often: 91%, against 89% of all sites. Sites with 6+ layout shifts shift count have it least often, at 79%.

SitesGood, needs improvement, poor CLSMedian
All sites126,76189%0.00
0 layout shifts 32.1%39,12893%0.00
1 to 2 layout shifts 39.7%50,50391%0.00
3 to 5 layout shifts 15.0%19,95482%0.00
6+ layout shifts 13.1%17,08579%0.01
GoodNeeds improvementPoorSites: with Chrome field data
The State of Web Vitals · October 2026 · 210,902 crawled sites · 126,761 with phone field data · 206,118 sites with layout shift countBy Arjen Karel · corewebvitals.io/state-of-cwv
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Layout shift count usage

Two in three sites uses layout shift count, and three in five of those use 1 to 2 layout shifts.

Sites with layout shift count 206,118 sites
0 layout shifts 32.1% Layout shift count 67.9%
Sites with layout shift count 139,880 sites
1 to 2 layout shifts 58.5% 3 to 5 layout shifts 22.2% 6+ layout shifts 19.3%
1 to 2 layout shifts 58.5% 3 to 5 layout shifts 22.2% 6+ layout shifts 19.3%
The State of Web Vitals · October 2026 · 210,902 crawled sites · 126,761 with phone field data · 206,118 sites with layout shift countBy Arjen Karel · corewebvitals.io/state-of-cwv
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Understanding layout shift count

How repeated layout shifts erode visual stability in the field

Each unexpected layout frame during page load increments the shift count. Across 66,238 sites (32.1%) with 0 lab shifts, 93% pass field CLS, and across 81,844 sites (39.7%) with 1 to 2 shifts, 91% pass field CLS. When a page triggers 3 to 5 shifts (15.0%), good field CLS drops to 82%, and at 6 or more shifts (13.1%, 27,027 sites) good field CLS falls to 79%.

Eliminate sequential layout jumps by setting explicit width and height on every image and iframe, pre-allocating fixed height for top announcement bars, and matching fallback font metrics. Across all audited sites, 32.1% record 0 shifts (93% good CLS) and 13.1% record 6 or more (79% good CLS).

Go fix it Scroll-triggered animations cause CLS → Layout shift caused by CSS transitions → Identify and fix CLS →
The State of Web Vitals · October 2026 · 210,902 crawled sites · 126,761 with phone field data · 206,118 sites with layout shift countBy Arjen Karel · corewebvitals.io/state-of-cwv
Platform & Framework Takeaways

How layout shift count plays out per platform

What the field data shows when you isolate a single CMS or framework.

WordPress 65,505 sites
95% vs 81% good CLS (0 shifts vs 6+ shifts)

WordPress pages with 6+ lab layout shifts (14.8%) pass field CLS at 81% vs 95% with 0 shifts (14 points apart).

Across 65,505 WordPress sites, 25.8% record 0 lab shifts (95% good CLS), 44.0% record 1 to 2 shifts (93%), 15.4% record 3 to 5 shifts (85%), and 14.8% record 6+ shifts (81% good CLS).

Read the WordPress layout shift count breakdown →
Shopify 8,573 stores
98% vs 83% good CLS (0 shifts vs 6+ shifts)

Shopify stores with 6+ lab layout shifts (8.1%) pass field CLS at 83% vs 98% with 0 shifts.

Across 8,573 Shopify storefronts, 33.7% record 0 lab shifts (98% good CLS), 42.3% record 1 to 2 shifts (94%), and 8.1% record 6 or more shifts (83% good CLS).

Read the Shopify layout shift count breakdown →
React & Next.js 9,570 sites
97% vs 70% good CLS (0 shifts vs 3-5 shifts)

57.2% of React & Next.js sites record 0 lab layout shifts (97% good CLS vs 70% at 3 to 5 shifts).

Across 9,570 React sites, 57.2% record 0 lab shifts (97% good CLS), 27.1% record 1 to 2 shifts (93%), 9.3% record 3 to 5 shifts (70% good CLS), and 6.4% record 6+ shifts (76% good CLS).

Related signals What shifted → Shift direction → Largest single shift → Shift concentration → By Arjen Karel · 210,902 crawled sites (126,761 with phone Chrome field data, 206,118 sites with layout shift count, October 2026) · How we measured