ASP.NET tracing enables you to view diagnostic information about a single request for an ASP.NET page. ASP.NET tracing enables you to follow a page's execution path, display diagnostic information at run time, and debug your application. ASP.NET tracing can be integrated with system-level tracing to provide multiple levels of tracing output in distributed and multi-tier applications.

In ASP.NET 2.0, there is rich support for tracing. The destination for trace output can be configured with TraceListeners like the EventLogTraceListener.

ASP.NET 2.0 Improvements for Tracing ASP.NET Tracing has increased precision from 6 digits to 18 digits for highly accurate profiling. Trace forwarding between the ASP.NET page-specific Trace class and standard Base Class Library's (BCL) System.Diagnostics.Trace used by non-Web developers.