SEO
How to Improve Your Website Loading Speed for Better SEO?
To improve loading speed, optimize images (WebP, lazy loading), enable browser caching, minify CSS/JS, use a CDN and choose performant hosting. Sites loading under 3 seconds have 32% lower bounce rates and better Google rankings.
Why Loading Speed Impacts Your SEO?#
Google uses Core Web Vitals as a ranking factor since 2021. A slow site loses visitors and search result positions.
Essential Metrics to Optimize#
| Metric | Target | SEO Impact |
|---|---|---|
| LCP (Largest Contentful Paint) | < 2.5s | High |
| INP (Interaction to Next Paint) | < 200ms | High |
| CLS (Cumulative Layout Shift) | < 0.1 | Medium |
Image Optimization Techniques#
- WebP format: 25-35% lighter than JPEG
- Lazy loading: Load images on scroll
- Responsive images: Serve the right size per screen
- Compression: Use TinyPNG or ImageOptim
Code Optimization#
- Minification: Reduce CSS/JS with Terser and cssnano
- Tree shaking: Eliminate dead code
- Code splitting: Load modules on demand
- Critical CSS: Inline above-the-fold CSS
Frequently Asked Questions#
Which tool to measure speed?#
Google PageSpeed Insights, Lighthouse, and GTmetrix are the references. Test from multiple locations.
Does lazy loading impact image SEO?#
No, if you use the native loading="lazy" attribute. Google crawls these images correctly.
Tags:SEOPerformanceCore Web VitalsOptimization
Last updated: January 10, 2025
About the Author
AA
Ayoub Agouzil
Founder & Digital Expert
Founder of Web Success and digital transformation expert with 5+ years of experience helping Moroccan businesses succeed online.
