Today's modern web sites and applications include more JavaScript, CSS, images, and other media than in the past. Optimization is extremely important for end-user usability and service scalability. Whether a new web 2.0 site or a large enterprise application, there are many techniques for optimization. This talk will touch on 3 Cs of Ajax application optimization and some free tools and techniques that can help you identify and solve problems.

• Combine: Combining files makes them easier to compress and reduces HTTP overhead in additional requests. Merging smaller images allow browsers on high latency links to receive them quicker.
• Compress: A majority of web resources today are primarily text; a little compression can lead to huge savings in bandwidth and download times for users.
• Cache: Reducing the number of requests to the server for static image and frequently used resources.

An overview of existing problems will be discussed, using real-world examples to illustrate each point. A couple large Ajax-heavy sites will be dissected to review the various techniques that apply.