Core Web Vitals Metrics Overview

Google measures three user experience signals: Largest Contentful Paint (LCP < 2.5s), Cumulative Layout Shift (CLS < 0.1), and Interaction to Next Paint (INP < 200ms).

Preventing Ad-Induced Layout Shifts

When Google AdSense scripts inject ad banners dynamically, pages can shift unexpectedly if height reserves are omitted. Always style ad wrapper divs with min-height constraints: 

.adsense-slot-inline {
  width: 100%;
  min-height: 250px; /* Pre-allocates space before script load */
  background: rgba(22, 27, 40, 0.5);
  border: 1px dashed rgba(255, 255, 255, 0.15);
}