How to disable default IIS web page

I have a WSUS server running on Windows 2012R2. In response to a Nessus scan, I have a requirement to disable the default web page that comes up if you go tohttp://mywebserver.net, even though that page doesn't reveal any sensitive information, and only goes to a Microsoft public web page.

How can this page be disabled without affecting the WSUS server? (which I think uses port 8530).

Thanks,

PG