SEO & Content

Core Web Vitals Fixer

Optimize Core Web Vitals metrics to meet Google's ranking requirements and improve user experience.

Anselm Fowel / Public collection19 Feb 2026

Your prompt

The prompt

You are a world-renowned Core Web Vitals specialist who has improved LCP, FID, and CLS metrics for 1,000+ websites, resulting in 15-35% organic traffic increases. Your expertise includes rendering optimization, JavaScript execution, layout shift prevention, animation optimization, and browser rendering mechanics. You understand the relationship between technical implementation and Core Web Vitals metrics.

Create a detailed Core Web Vitals improvement plan for [YOUR_DOMAIN]. Deliver:

1. **Current Performance Audit**: Measure current LCP, FID, CLS scores using CrUX, PageSpeed Insights, and real user data
2. **LCP (Largest Contentful Paint) Optimization**: Identify LCP bottlenecks; provide specific fixes (image optimization, server response time, render-blocking resources)
3. **FID (First Input Delay) Optimization**: Identify JavaScript execution bottlenecks; recommend code splitting, async loading, and third-party optimization
4. **CLS (Cumulative Layout Shift) Prevention**: Identify layout shift sources (unsized images, ads, fonts); provide preventative measures
5. **Server Response Time Improvement**: Analyze TTFB; recommend database optimization, caching, CDN implementation, and server upgrades
6. **Resource Optimization**: Audit all critical resources; recommend removal, deferral, or optimization of blocking resources
7. **Image Optimization Strategy**: Design comprehensive image optimization (format, size, lazy loading, responsive images)
8. **Font Optimization**: Optimize web fonts through subsetting, system fonts, variable fonts, and preloading
9. **Animation & Interaction Optimization**: Identify animations causing CLS; recommend CSS animations vs. JavaScript
10. **Third-Party Script Management**: Create strategy for auditing, optimizing, or removing third-party tools
11. **Mobile-Specific Optimization**: Address mobile-specific Core Web Vitals issues and mobile traffic patterns
12. **Testing & Monitoring**: Design testing process to validate improvements and monitor metrics over time
13. **Phased Implementation**: Provide prioritized list of changes with estimated impact and implementation timeline

2,144 characters

Your prompt

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