Core Web Vitals
A set of Google metrics measuring page loading speed, interactivity, and visual stability.
Why It Matters
Core Web Vitals are a confirmed Google ranking factor that directly impacts user experience.
How It Works
Google measures three metrics: Largest Contentful Paint (loading), Interaction to Next Paint (interactivity), and Cumulative Layout Shift (visual stability). Pages passing all three thresholds get a ranking boost.
Real-World Example
Improving LCP from 4.5s to 2.0s moves a page from "Poor" to "Good" and correlates with a 15% traffic increase.
Common Mistakes
Optimizing lab data but ignoring real-user field data
Fixing one metric while degrading another
Related Terms
A Core Web Vital measuring how long it takes for the largest visible element to load.
A Core Web Vital measuring how quickly a page responds visually to user interactions.
A Core Web Vital measuring how much page content shifts unexpectedly during loading.
Core Web Vitals FAQs
How do I check Core Web Vitals?
Use Google PageSpeed Insights, Chrome UX Report, or the Core Web Vitals report in Search Console.
How much do Core Web Vitals affect rankings?
They are a tiebreaker signal; great content still outranks poor content with better vitals.
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