Tracing in ASP.NET solves all of these problems. It lets your pages, controls, and code write information to a central location, called the trace, which can then be shown in the browser. Tracing is built into the ASP.NET Framework, which means you can use it without any manual coding. Additionally, you can add your own information to the trace. In the following section, you see how to use the built-in tracing capabilities, giving you a wealth of information about your page. In a later exercise, you see how to add your own information to the trace.