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| Metric | Good | Needs Improvement | Poor |
|---|---|---|---|
| LCP (Largest Contentful Paint) | ≤2.5s | 2.5-4s | >4s |
| INP (Interaction to Next Paint) | ≤200ms | 200-500ms | >500ms |
| CLS (Cumulative Layout Shift) | ≤0.1 | 0.1-0.25 | >0.25 |
| 指标 | 良好 | 需要改进 | 较差 |
|---|---|---|---|
| LCP (最大内容绘制) | ≤2.5s | 2.5-4s | >4s |
| INP (交互到下一次绘制) | ≤200ms | 200-500ms | >500ms |
| CLS (累积布局偏移) | ≤0.1 | 0.1-0.25 | >0.25 |
| Asset Type | Budget |
|---|---|
| Total JS | <100KB (gzipped) |
| Total CSS | <50KB (gzipped) |
| Hero image | <200KB |
| Any single image | <100KB |
| 资源类型 | 预算 |
|---|---|
| 总JS体积 | <100KB（gzip压缩后） |
| 总CSS体积 | <50KB（gzip压缩后） |
| 首屏图片 | <200KB |
| 单张图片 | <100KB |
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