Frontend Performance Guide
A comprehensive guide to frontend web performance — metrics, techniques, checklists, and interactive demos.
Start Reading →Executive Summary
20 Quick Wins: Low-Hanging Performance Fruit
Comprehensive Performance Checklist
1. Performance Culture & Planning
2. Core Web Vitals & Modern Metrics
3. Performance Budgets & Real User Monitoring
4. Modern Build Tools
5. Code Splitting, Tree Shaking & Bundle Optimization
6. JavaScript Execution & Runtime Performance
7. Differential Serving & Legacy Code
8. Rendering Strategies Overview
9. React 19 & Server Components
10. React Performance Patterns & State Management
11. Alternative Frameworks & Their Performance Models
12. Image Optimization
13. CSS Optimization
14. Modern CSS Replacing JavaScript
15. Font Loading & Optimization
16. Third-Party Script Management
17. Resource Hints & Prefetching
18. Network Protocols & Compression
19. Edge Computing, CDNs & Caching
20. Testing, Monitoring & Debugging
21. Security & Performance
22. Accessibility & Developer Experience