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Checks · Product pages

Upsell app injects layout shift

P9Medium severityProduct pages

What it is

An upsell or bundle app injects content after the page draws, shifting the layout by more than 0.1 CLS on mobile.

Why it costs money

Content that appears late moves what the shopper was about to tap. Mis-taps at this point usually end the session rather than correct themselves.

How to see it on your own store

Load a product page and watch the area under the price. Does anything push it down a second later?

What Liftable would do

Reserve space / defer.

Made in the app, or in your theme editor for its embed. Liftable does not switch apps off or change their settings, and no app is uninstalled.

Approving records your decision and changes nothing on your store.

How it is priced

A scan prices this against your own traffic and average order value, then assumes a fix wins back 50% of the excess loss — never more than half, and never more than 35% of that surface's revenue. The formula and every input are printed on the report, so you can disagree with the number and see exactly which assumption to argue with.

A scan checks this and 38 other things on your store, prices each one, and drafts the first fix.

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Also on product pages

Upsell app injects layout shift · Liftable