CWV · LCP · INP · CLS
Core Web Vitals are three experience metrics measured by Google: LCP (main content display), CLS (visual stability) and INP (responsiveness to interactions). The “good” thresholds are 2.5 seconds for LCP, 0.1 for CLS and 200 milliseconds for INP.
Standalone definition · 38 words
What does each metric measure?
LCP measures the time to display the largest visible element. CLS measures unexpected layout shifts. INP, which replaced FID in March 2024, measures the latency of interactions throughout the visit. Each metric is assessed at the 75th percentile of real visits.
What is the impact on SEO and GEO?
Google says Core Web Vitals are part of the page experience evaluation, without guaranteeing a ranking improvement. For GEO, performance matters mainly through crawling: high response times and heavy pages reduce the amount of content retrieved by bots.
How do you measure and fix them?
Search Console’s Core Web Vitals report and CrUX for field data, PageSpeed Insights and Lighthouse for diagnosis. Common fixes: optimize and preload the LCP image, reserve space for images and ads, reduce blocking JavaScript and break up long tasks.
Frequently asked questions
Are Core Web Vitals a ranking factor?
Google includes them in page experience evaluation. A good score does not make up for less relevant content.
Lab data or field data?
Field data (CrUX) is what counts for evaluation. Lab data is for diagnosis.
Should I aim for 100 on PageSpeed?
No. The goal is to pass the “good” thresholds on field data.
Related terms
Further reading
- Checklist GEO and LLM / AI 2026
- 2026 GEO Tools Comparison: The Decision Guide
- ← Back to the GEO glossary (114 terms)