CLS · Visual stability

Cumulative Layout Shift: how much content jumps around on its own.

CLS verdict

v1.2.1 vs v1.2.0 · / · mobile

Nowv1.2.0

Unchanged

Visual stability didn’t change. A change only counts when it is at least 5% and at least 0.010. Here that means 0.010, so this one doesn’t.

better−0.010 · too small to count · +0.010worse

Now · v1.2.1

0.019

Good

v1.2.00.019Change0.000Good up to0.100

Visits measured

171

on mobile, enough for a verdict

v1.2.0 · mobile224 / 30

v1.2.1 · mobile171 / 30

v1.2.1 · desktop62 / 30

Where visits landed

share of visits in each range

v1.2.0100%

v1.2.1100%

Good ≤ 0.100Needs improvementPoor > 0.250

Same shape as v1.2.0. Nearly all mobile visits shift by 0.100 or less.

Things that can move content around. A place to look, not a cause.

Typical visit · each point is a deploy, ringed by its CLS verdict

ImprovedRegressedUnchanged

v1.2.1 vs v1.2.0 · mobile · pages need 30 visits on both sides

PageVisitsv1.2.0v1.2.1ChangeVerdict

1710.0190.019+0.0%Unchanged

1220.0210.021+0.0%Unchanged

1460.0220.022+0.0%Unchanged

490.0190.019+0.0%Unchanged