Core Web Vitals
What Are Core Web Vitals?
Google’s UX Scorecard
Core Web Vitals are a set of metrics that measure real-world user experience.
Specifically:
- Largest Contentful Paint (LCP) – How fast your main content loads
- First Input Delay (FID) – How fast your site responds to interaction
- Cumulative Layout Shift (CLS) – How stable your layout is during load
Why They Matter for SEO?
UX Is Now a Ranking Factor
As of 2021, Core Web Vitals are officially part of Google’s ranking algorithm.
They:
- Affect mobile and desktop SEO
- Influence bounce rates and dwell time
- Can decide tie-breaker rankings in competitive SERPs
How to Measure Them?
Tools You Can Trust
- Google PageSpeed Insights
- Lighthouse (Chrome DevTools)
- Google Search Console → Core Web Vitals Report
How to Fix Core Web Vitals Issues?
Performance → Rankings
- ✅ Optimize image sizes (use next-gen formats like WebP)
- ✅ Use lazy loading for below-the-fold elements
- ✅ Minify JavaScript and CSS
- ✅ Preload key fonts
- ✅ Implement caching + CDN
- ✅ Avoid injecting ads or popups above the fold
Related Technical Pages
Build Around Your Stack
Page Speed
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Mobile-First SEO
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Site Architecture
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Fix the Experience
Rankings don’t just come from content. They come from how it feels to load your page.