Gear5 is easy to use, website performance monitoring system. It started as an internal project of Infostud 3 doo. Infostud is a leading Serbian .com company providing services in various fields, such as employment, the automotive industry, education and tourism. With more than 120 million page views per month, performance optimization and effective bottleneck detection became one of our goals. After surveying and testing various 3rd-party tools available on the Internet, we found that they were either expensive, lacking some features or just too complex for our needs, so we decided to write our own tool. After some initial testing and experimentation, we created a simple working tool that provided us the information that we needed for performance optimization and bottleneck detection.We had a tool that is working for us. So logically, the question was raised: Why shouldn't it work for others? Thus, Gear5 was born.