页面速度优化
提升页面加载速度,改善用户体验和搜索表现
速度的重要性
页面速度影响用户体验[1]、搜索排名[2]和转化率[3]。
优化方法
图片优化[4]
- 压缩图片
- 现代格式(WebP)
- 懒加载
- 响应式图片
代码优化[5]
- 压缩CSS/JS
- 删除无用代码
- 异步加载
- 关键CSS内联
缓存策略[6]
- 浏览器缓存
- CDN使用
- 服务器缓存
服务器优化[7]
- 升级主机
- 数据库优化
- HTTP/2
- Gzip压缩
测试工具[8]
- PageSpeed Insights
- GTmetrix
- WebPageTest
- Lighthouse
目标指标[9]
- LCP < 2.5s
- FID < 100ms
- CLS < 0.1
相关资源
参考文献
-
Google. (2024). "Page Speed". Web Vitals. https://web.dev/vitals/
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Google. (2024). "Speed as Ranking Factor". Search Guidelines. https://developers.google.com/search/docs/appearance/page-experience
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Google. (2024). "Speed and Conversion". Think with Google. https://www.thinkwithgoogle.com/marketing-strategies/app-and-mobile/mobile-page-speed-new-industry-benchmarks/
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Google. (2024). "Image Optimization". Web Performance. https://web.dev/fast/#optimize-your-images
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Google. (2024). "Code Optimization". Performance Guide. https://web.dev/fast/#optimize-your-javascript
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Google. (2024). "Caching". Performance Best Practices. https://web.dev/http-cache/
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Google. (2024). "Server Optimization". Performance Guide. https://web.dev/fast/#optimize-your-server
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Google. (2024). "PageSpeed Insights". Testing Tool. https://pagespeed.web.dev/
-
Google. (2024). "Core Web Vitals". Metrics. https://web.dev/vitals/#core-web-vitals
更新日期:2025-11
词条状态:✅ 已完成