In Performance Research Part 1 , we discussed how reducing the number of HTTP requests has the biggest impact on improving the response time and is often the easiest performance improvement to make. One technique without having to simplify the page...

At MacWorld 2008 , Steve Jobs announced that Apple sold 4 million iPhones to date, that's 20,000 iPhones sold every day. Net Applications reports that total web browsing on iPhone is up at 0.12% for December 2007, topping the web browsing on all...

HTTP cookies are used for a variety of reasons such as authentication and personalization. Information about cookies is exchanged in the HTTP headers between web servers and browsers. This article discusses the impact of cookies on the overall user...

It's no secret that users prefer faster web sites. I work in a dedicated team focused on quantifying and improving the performance of Yahoo! products worldwide. As part of our work, we conduct experiments related to web page performance. We are...