Complete Guide to Core Web Vitals Optimization: Improve Website Performance

What are Core Web Vitals?

Core Web Vitals are three key metrics Google uses to measure website user experience:

• LCP (Largest Contentful Paint): Measures loading speed
• FID (First Input Delay): Measures interactivity
• CLS (Cumulative Layout Shift): Measures visual stability

Metric Standards

LCP Optimization Methods

1. Optimize Images

• Use modern image formats (WebP, AVIF)
• Compress image sizes
• Use lazy loading
• Set appropriate image dimensions

2. Optimize Server Response Time

• Use CDN
• Optimize server configuration
• Use caching

3. Optimize Critical Resource Loading

• Remove render-blocking resources
• Defer loading non-critical CSS and JavaScript
• Use preload and prefetch

FID Optimization Methods

• Reduce JavaScript execution time
• Code splitting and lazy loading
• Optimize third-party scripts
• Use Web Workers for complex tasks

CLS Optimization Methods

• Set size attributes for images and videos
• Avoid inserting content above existing content
• Use font display strategies
• Avoid dynamically injecting content

Using SeoCraft to Monitor Core Web Vitals

SeoCraft's technical SEO analysis feature can:

• Monitor Core Web Vitals metrics in real-time
• Identify performance bottlenecks
• Provide optimization suggestions
• Track optimization effectiveness

Conclusion

Optimizing Core Web Vitals not only improves user experience but also enhances SEO rankings. Through systematic optimization, your website can achieve better performance in search results.