Testing for performance is only half the battle. At some point, you must actually implement performance optimizations and compare results to make sure your site is getting faster. Sometimes you want to test out an optimization, such as using a different CDN or loading assets from a different system. Other times you want to understand if a specific piece of third party content is a single point of failure. In this post we'll discuss two methods for testing optimizations without making major changes to your site's source code: Using DNS Ov...

Read More