---
tags: [Web, Performance]
---

# Performance

## Code

- [DOM](./dom.md) - DOM manipulation optimization, reflow/repaint, requestAnimationFrame, CSSOM
- [JavaScript](./javascript.md) - Memory leaks, function, async scheduling, event delegation
- [CSS](./css.md) - Properties, selector optimization, CSS triggers, loading and animation

## Loading

- [Cache](./cache.md) - HTTP cache hierarchy, Cache-Control directives, code cache lifecycle, BFCache
- [Image](./image.md) - Responsive images, loading strategies, WebP/AVIF formats, optimization tools
- [Loading](./loading.md) - Render blocking resources, preloading/prefetching, lazy loading, loading priorities

## Monitoring

- [Monitoring](./monitoring.md) - Synthetic vs RUM, APIs, timing metrics, reporting strategies
- [Vitals](./vitals.md) - FP/FCP/LCP/INP/CLS metrics, observers, PRPL pattern

## Best Practices

- [Best Practices](./best-practices.md) - Comprehensive optimization checklist and toolchain
