⚡ PageSpeed Optimization Guide
Improve Core Web Vitals for Better Rankings
📊 Core Web Vitals
LCP
Largest Contentful Paint
Measures loading performance. How fast the main content loads.
≤2.5s
2.5-4s
>4s
INP
Interaction to Next Paint
Measures interactivity. How fast the page responds to input.
≤200ms
200-500ms
>500ms
CLS
Cumulative Layout Shift
Measures visual stability. How much content shifts during load.
≤0.1
0.1-0.25
>0.25
92
Performance Score
90-100 Good
50-89 Needs Work
0-49 Poor
🔧 Optimization Strategies
🖼️ Image Optimization
Images are often the largest assets on a page.
- Use WebP or AVIF formats
- Compress images (TinyPNG, Squoosh)
- Implement responsive images
- Add lazy loading for below-fold images
📦 Code Optimization
Minimize and optimize CSS and JavaScript.
- Minify CSS, JS, and HTML
- Remove unused CSS
- Defer non-critical JavaScript
- Split code into smaller chunks
💾 Caching
Store files locally to reduce load times.
- Enable browser caching
- Set proper cache headers
- Use a CDN for static assets
- Implement service workers
🖥️ Server Optimization
Improve server response time.
- Use HTTP/2 or HTTP/3
- Enable GZIP compression
- Optimize database queries
- Use a fast hosting provider
📈 Speed Impact
📊
Rankings
Core Web Vitals are a ranking factor
👥
User Experience
Faster sites = happier users
💰
Conversions
Each second delay = 7% fewer conversions
📉
Bounce Rate
53% leave if load > 3 seconds
🛠️ Speed Testing Tools
📊
PageSpeed Insights
Google's free speed analyzer
🔍
Lighthouse
Chrome DevTools audit
🌐
GTmetrix
Detailed performance reports
⚡
WebPageTest
Advanced waterfall analysis
📈
Chrome UX Report
Real user metrics
🎯
Pingdom
Global speed testing
🔬
Web Vitals Extension
Chrome extension for CWV
📱
Search Console
Core Web Vitals report
✨ Best Practices
Do This
- Optimize and compress all images
- Use modern image formats (WebP, AVIF)
- Set dimensions on images and iframes
- Preload critical resources
- Enable caching and CDN
- Minify CSS, JS, and HTML
Avoid This
- Uncompressed or oversized images
- Render-blocking resources
- Too many third-party scripts
- Missing image dimensions
- No caching strategy
- Slow hosting or server