Best Practices for Speeding Up Your Web Site

Best Practices for Speeding Up Your Web Site

Exceptional Performance : Best Practices for Speeding Up Your Web Site

High Performance Web Sites
by Steve Souders,
Chief Performance Yahoo!
available from
O'Reilly Media

1. The Importance of Front-End Performance

1. Make Fewer HTTP Requests
2. Use a Content Delivery Network
3. Add an Expires 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
11. Avoid Redirects
12. Remove Duplicate Scripts
13. Configure ETags
14. Make Ajax Cacheable