Core Web Vitals

Check LCP, CLS, FCP, TBT, and TTFB via Google PageSpeed Insights.

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FAQs

What are Core Web Vitals?

Core Web Vitals are three Google metrics that measure real-world user experience: LCP (loading), INP (interactivity), and CLS (visual stability). They are a confirmed ranking factor.

What is a good LCP score?

LCP (Largest Contentful Paint) should be under 2.5 seconds. 2.5-4s needs improvement. Above 4s is poor and will likely hurt rankings.

What is CLS?

CLS (Cumulative Layout Shift) measures how much your page layout jumps around while loading. A score of 0-0.1 is good. Common causes: images without dimensions, ads injected above content.

What is TBT?

Total Blocking Time measures how long the main thread is blocked and unable to respond to user input. Under 200ms is good. It is closely related to INP (Interaction to Next Paint).