You can get your apache2 (and, I suspect, apache) server to display status information on prefab server-status and server-info pages by loading the status and info modules and tweaking the configuration files to pay attention to them.
Having done that, http://localhost/server-info and http://localhost/server-status
will tell you what modules are loaded and what they do. With little more work, you can also permit access to these pages by other boxes.
I set this up yesterday at work, but haven't done it at home because this laptop isn't serving up web pages at all.