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Speeding Up Your Website

By on Jan 19, 2009 in Programming

  1. Make Fewer HTTP Requests
  2. Use a Content Delivery Network
  3. Add an Expires or a Cache-Control Header
  4. Gzip Components
  5. Put Stylesheets at the Top
  6. Put Scripts at the Bottom
  7. Avoid CSS Expressions
  8. Make JavaScript and CSS External
  9. Reduce DNS Lookups
  10. Minify JavaScript and CSS
  11. Avoid Redirects
  12. Remove Duplicate Scripts
  13. Configure ETags
  14. Make Ajax Cacheable
  15. Flush the Buffer Early
  16. Use GET for AJAX Requests
  17. Post-load Components
  18. Preload Components
  19. Reduce the Number of DOM Elements
  20. Split Components Across Domains
  21. Minimize the Number of iframes
  22. No 404s
  23. Reduce Cookie Size
  24. Use Cookie-free Domains for Components
  25. Minimize DOM Access
  26. Develop Smart Event Handlers
  27. Choose <link> over @import
  28. Avoid Filters
  29. Optimize Images
  30. Optimize CSS Sprites
  31. Don’t Scale Images in HTML
  32. Make favicon.ico Small and Cacheable
  33. Keep Components under 25K
  34. Pack Components into a Multipart Document

From http://developer.yahoo.com/performance/rules.html

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RSS Feed for This Post1 Comment(s)

  1. stf | Jan 20, 2009 | Reply

    the firefox plugin that verify these rules :

    http://developer.yahoo.com/yslow/

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