Web 2.0 is adding more and more content to our pages, especially features that are implemented in Ajax. But our web applications are evolving faster than the browsers that they run in. We don't have to rely on or wait for the release of new browsers to make our web applications faster.

In this session Steve Souders discusses web performance best practices from his second book, Even Faster Web Sites. These time-saving techniques are used by the world's most popular web sites to create a faster user experience, increase revenue, and reduce operating costs. Steve provides technical details about reducing the pain of JavaScript and CSS, as well as secrets for making your page load faster in emerging markets where network connectivity is a challenge. You'll learn how to make your web sites 25-50% faster.

Proven advice to be explored:

• Iframes block the onload handler;
• Even blank iframes slow down the page;
• Inline scripts block rendering in the entire page;
• Inline scripts block downloads;
• Stylesheets followed by inline scripts can make your pages twice as slow;
• The various techniques for dynamically loading JavaScript vary widely in how they affect the browser.

Presented at The Ajax Experience 2009, September 14-16, 2009 in Boston, MA