Doing a technical audit pass across a batch of client sites recently, and the pattern that kept showing up wasn't image size or unminified JS, it was Cumulative Layout Shift. Ads, embedded fonts, and lazy-loaded images without reserved dimensions were quietly tanking CLS scores even on sites tha...
Source: [Dev.to](https://dev.to/abu_bakar_579f3c098ae9d56/we-found-40-of-client-sites-were-losing-rankings-over-one-core-web-vitals-metric-nobody-checks-2mo5)