[Original] Google Page speed, one of the powerful tools for website performance optimization"
Http://code.google.com/intl/zh-CN/speed/page-speed/
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What is page speed? Page speed is an open-source Firefox/firebug add-on. webmasters and web developers can use page speed to evaluate the performance of their web pages and to get suggestions on how to improve them. |
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How does page speed work? Page speed performs several tests on a site's Web server configuration and front-end code. these tests are based on a set of best practices known to enhance web page performance. webmasters who run page speed on their pages get a set of scores for each page, as well as helpful suggestions on how to improve its performance. |
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Why shoshould you use page speed? By using page speed, you can:
- Make your site faster.
- Keep Internet users engaged with your site.
- Reduce your bandwidth and hosting costs.
- Improve the web!
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For Google Page speed's website optimization suggestions, refer to the following:
- Enable gzip Compression
- Leverage browser caching
- Leverage proxy caching
- Remove unused CSS
- Serve static content from a cookieless domain
- Use efficient CSS selectors
- Minify Javascript
- Optimize images
- Serve resources from a consistent URL
- Minimize redirects
- Put CSS in the document head
- Minimize cookie size
- Combine external Javascript
- Minimize DNS lookups
- Optimize the order of styles and scripts
- Avoid CSS expressions
- Combine external CSS
- Defer loading of JavaScript
- Parallelize downloads internal SS hostnames
- Specify image dimensions
Similar to Yahoo yslow, if you are interested, refer to it!