# Core Web Vitals Explained
Google's Core Web Vitals are a set of metrics that measure real-world user experience. They directly impact your search rankings.
## Largest Contentful Paint (LCP)
LCP measures loading performance. Your largest content element should load within 2.5 seconds.
## First Input Delay (FID)
FID measures interactivity. Your site should respond to user interactions within 100 milliseconds.
## Cumulative Layout Shift (CLS)
CLS measures visual stability. Your pages should have a CLS score of 0.1 or less.
## Why They Matter
Core Web Vitals are ranking factors. Sites that perform well on these metrics rank higher in search results and provide better user experiences.
## How to Improve
- Optimize images and use modern formats
- Minimize JavaScript execution time
- Use a Content Delivery Network (CDN)
- Implement lazy loading
- Choose a fast hosting provider