Cumulative Layout Shift (CLS) Minimization

Why we check this

We check this because unresolved technical issues can silently block Google from crawling, rendering or indexing your pages at all — no amount of good content fixes a page search engines can't reach in the first place.

How it's checked in your audit

In your seoaudits.ie audit, this is checked as part of the Technical SEO pillar, using crawl data, log files and manual verification.

A common issue we see

Images and ads with no explicit dimensions cause visible content to jump around as the page loads — a common complaint on mobile.

How to fix it

Set explicit width and height attributes (or CSS aspect-ratio) on every image, video and ad slot.