At Google, we focus constantly on speed; we believe that making our websites load and display faster improves the user's experience and helps them become more productive. Today, we want to share with the web community some of the best practices we've used and developed over the years, by open-sourcing Page Speed.
Page Speed's suggestions are based on a set of commonly accepted best practices that we and other websites implement. To help you understand the suggestions and rules, we have created detailed documentation to describe the rationale behind each of the rules. We look forward to your feedback on the Webmaster Help Forum.
We hope you give Page Speed a try.