14 rules for better web performance

• Rule 1: Make Fewer HTTP Requests
• Rule 2: Use a Content Delivery Network
• Rule 3: Add an Expires Header
• Rule 4: Gzip Components
• Rule 5: Put Stylesheets at the Top
• Rule 6: Put Scripts at the Bottom
• Rule 7: Avoid CSS Expressions
• Rule 8: Make JavaScript and CSS External
• Rule 9: Reduce DNS Lookups
• Rule 10: Minify JavaScript
• Rule 11: Avoid Redirects
• Rule 12: Remove Duplicate Scripts
• Rule 13: Configure ETags
• Rule 14: Make Ajax Cacheable

出自《Even Faster Web Sites》 Steve Souders 还没有看，备查