You can use it to perform many tasks, including the following.
* Benchmarking how much time it takes to generate content for
your web application.
* Web server and web application stressing.
* Testing virtual domains configuration without the need to
alter your local resolver.
* Check if your redirects are working correctly emitting the
right HTTP code.
* Test if the HTTP compression is working and if it is actually
serving pages faster.
* Use it as a configuration-less HTTP server to share files.