雅虎提升web性能23条建议

Web Performance Best Practices and Rules

Yahoo!'s Exceptional Performance team has identified 34 rules that affect web page performance. YSlow's web page analysis is based on the 23 of these 34 rules that are testable. Click each performance rule below to see the details.

  1. Minimize HTTP Requests

  2. Use a Content Delivery Network

  3. Avoid empty src or href

  4. Add an Expires or a Cache-Control Header

  5. Gzip Components

  6. Put StyleSheets at the Top

  7. Put Scripts at the Bottom

  8. Avoid CSS Expressions

  9. Make JavaScript and CSS External

  10. Reduce DNS Lookups

  11. Minify JavaScript and CSS

  12. Avoid Redirects

  13. Remove Duplicate Scripts

  14. Configure ETags

  15. Make AJAX Cacheable

  16. Use GET for AJAX Requests

  17. Reduce the Number of DOM Elements

  18. No 404s

  19. Reduce Cookie Size

  20. Use Cookie-Free Domains for Components

  21. Avoid Filters

  22. Do Not Scale Images in HTML

  23. Make favicon.ico Small and Cacheable

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