Ask any group of online marketers if they measure the performance of the third-party advertisements that appear on their site, or of their own ads, which appear on other sites, and you will likely hear a discussion centered on A/B split tests and clickthrough rates.
There is, however, another major performance metric that has a significant impact on revenues, but is often overlooked: load times.
Take a complex, jQuery-driven website that requires pages to be fully loaded before being displayed, for