What is Core Web Vitals?
Google's three key metrics for measuring page loading speed, interactivity, and visual stability.
Why It Matters
Core Web Vitals are a Google ranking factor, so good scores help your site appear higher in search results.
Real-World Example
Optimising images and fonts to improve LCP, reducing JavaScript to improve INP, and fixing layout shifts for CLS.
“Understanding terms like Core Web Vitals matters because it helps you have better conversations with developers and make smarter decisions about your software. You do not need to be technical. You just need to know enough to ask the right questions.”
Related Terms
Web Vitals
A set of metrics from Google that measure real-world user experience on web pages.
LCP (Largest Contentful Paint)
A metric measuring how long it takes for the largest visible content element to finish loading.
CLS (Cumulative Layout Shift)
A metric measuring how much page content unexpectedly moves around while loading.
INP (Interaction to Next Paint)
A metric measuring the overall responsiveness of a page to user interactions throughout its lifetime.
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Related Terms
Web Vitals
A set of metrics from Google that measure real-world user experience on web pages.
LCP (Largest Contentful Paint)
A metric measuring how long it takes for the largest visible content element to finish loading.
CLS (Cumulative Layout Shift)
A metric measuring how much page content unexpectedly moves around while loading.
INP (Interaction to Next Paint)
A metric measuring the overall responsiveness of a page to user interactions throughout its lifetime.
Cache
A temporary storage that keeps copies of frequently accessed data for faster retrieval
CDN
A network of servers around the world that stores copies of your content closer to users