WordPress layout shift count and the Core Web Vitals

Sites with 1 to 2 layout shifts layout shift count have a good CLS most often: 81%, against 78% of all WordPress sites. Sites with 6+ layout shifts shift count have it least often, at 66%.

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

On jQuery, 44% of sites use 1 to 2 layout shifts layout shift count, and 77% of jQuery sites have a good CLS, against 78% of all sites. On Vue, 46% of sites use 1 to 2 layout shifts, and 75% of Vue sites have a good CLS.

FrameworkLayout shift count on its sitesGood CLS

WordPress sites with layout shift count 63,291 sites1 to 2 layout shifts 44%0 layout shifts 26%3 to 5 layout shifts 15%6+ layout shifts 15%78%

Alpine 380 sites1 to 2 layout shifts 43%0 layout shifts 29%3 to 5 layout shifts 19%81%

jQuery 60,310 sites1 to 2 layout shifts 44%0 layout shifts 25%3 to 5 layout shifts 16%6+ layout shifts 15%77%

React 2,233 sites1 to 2 layout shifts 42%0 layout shifts 23%3 to 5 layout shifts 19%6+ layout shifts 15%75%

Vue 4,844 sites1 to 2 layout shifts 46%0 layout shifts 22%3 to 5 layout shifts 18%6+ layout shifts 15%75%

1 to 2 layout shifts 0 layout shifts 3 to 5 layout shifts 6+ layout shifts

Does the framework explain the layout shift count difference?

On jQuery, 81% of sites with 1 to 2 layout shifts layout shift count have a good CLS, against 83% of jQuery sites with 0 layout shifts. Within jQuery, sites with 1 to 2 layout shifts have a good CLS less often. On Vue, 80% of sites with 1 to 2 layout shifts layout shift count have a good CLS, against 80% of Vue sites with 0 layout shifts. Within Vue, sites with 1 to 2 layout shifts and 0 layout shifts have a good CLS about equally often.

How repeated layout shifts erode visual stability in the field

Each unexpected layout frame during page load increments the shift count. Across 16,315 sites (25.8%) with 0 lab shifts, 84% pass field CLS, and across 27,803 sites (43.9%) with 1 to 2 shifts, 81% pass field CLS. When a page triggers 3 to 5 shifts (15.5%), good field CLS drops to 69%, and at 6 or more shifts (14.8%, 9,373 sites) good field CLS falls to 66%.