Page Speed Tips - SEO Tools

Page Speed Optimization Tips

Comprehensive guide to improving your website's loading speed and Core Web Vitals scores.

Image Optimization

Use WebP format - 25-35% smaller than JPEG/PNG
Lazy load images - Add loading="lazy" attribute
Specify dimensions - Always set width and height
Use responsive images - srcset for different screen sizes
Compress images - Use tools like TinyPNG, Squoosh
Use CDN - Serve images from edge locations

CSS Optimization

Minify CSS - Remove whitespace and comments
Remove unused CSS - Use PurgeCSS or similar
Inline critical CSS - Above-the-fold styles in <head>
Defer non-critical CSS - Load async with preload
Avoid @import - Blocks parallel downloads
Use CSS containment - Isolate component rendering

JavaScript Optimization

Minify JavaScript - Use terser, uglify
Defer scripts - Use defer or async attribute
Code splitting - Load only what's needed
Tree shaking - Remove unused code
Avoid document.write - Blocks rendering
Lazy load modules - Dynamic imports

Server Optimization

Enable GZIP/Brotli - Compress text resources
Use HTTP/2 - Multiplexed connections
Enable caching - Set proper cache headers
Use CDN - Reduce latency globally
Preconnect - Early connection to origins
DNS prefetch - Resolve domains early

Font Optimization

Use font-display: swap - Show fallback first
Subset fonts - Include only needed characters
Preload key fonts - Critical font resources
Use WOFF2 - Best compression format
Self-host fonts - Avoid third-party delays
Limit font weights - Only load what you use

Core Web Vitals

LCP < 2.5s - Optimize largest content element
FID < 100ms - Minimize main thread work
CLS < 0.1 - Reserve space for dynamic content
TTFB < 800ms - Server response time
FCP < 1.8s - First contentful paint
INP < 200ms - Interaction to Next Paint

Quick Code Snippets

Lazy Loading Images:

<img src="image.jpg" loading="lazy" width="800" height="600" alt="...">

Preload Critical Resources:

<link rel="preload" href="critical.css" as="style">
<link rel="preload" href="hero.webp" as="image">
<link rel="preconnect" href="https://fonts.googleapis.com">

Defer Non-Critical JS:

<script src="analytics.js" defer></script>
<script src="chat-widget.js" async></script>

Testing Tools

PageSpeed Insights GTmetrix WebPageTest Pingdom