What Are Core Web Vitals?
What Are Core Web Vitals?
Google's three page-experience metrics — LCP, INP, and CLS — and the thresholds each must pass.
Core Web Vitals are Google's three page-experience metrics: LCP, INP, and CLS. Passing all three is a real (if small) ranking signal — LemRank.
Frequently asked questions
Are Core Web Vitals a ranking factor?
Yes — but a modest one. Google confirmed CWV as a ranking signal in 2021. Content quality and topical relevance still dominate; CWV is a tiebreaker in competitive SERPs.
INP replaced FID — what changed?
INP measures every interaction on the page, not just the first. It landed as a stable Core Web Vital in March 2024, replacing FID entirely.
How do I fix a bad CLS score?
Reserve explicit width/height on images, ads, and iframes. Never inject content above already-rendered content. Use CSS transforms instead of properties that trigger layout.