default.aspx is set as the default document, I'm using Community Server for my site, so the folder 'an_mcsd_from_wisconsin' doesn't actually exists so it needs to have the 'default.aspx' after it so that the request gets passed to ASP.NET instead of just getting a 404 error.
I guess I'll have to do something to make a shorter url. Unless, of course they make the field longer.