Rules for High Performance Websites
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Here’s an excellent article on Yahoo on how to speed up your website. The points covered in this are:
- Make Fewer HTTP Requests
- Use a Content Delivery Network
- Add an Expires Header
- Gzip Components
- Put Stylesheets at the Top
- Put Scripts at the Bottom
- Avoid CSS Expressions
- Make JavaScript and CSS External
- Reduce DNS Lookups
- Minify JavaScript
- Avoid Redirects
- Remove Duplicate Scripts
- Configure ETags
- Make Ajax Cacheable
Read on at: Best Practices for Speeding Up Your Web Site
Here’s a Firefox plugin from to grade your site performance according to the rules outlined in this article:
YSlow for Firefox: http://developer.yahoo.com/yslow/
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