How does IE determine whether a site is an internet or an intranet site?

internet-explorer, internet-explorer-10

Solution

You can look in File -> Properties. Press Alt to display the menu bar if it's not there.

There you can see "Local intranet" or "Internet".

Problem

Within IE, people are provided with security setting dialog to decide whether a website is rendered as an internet or an intranet site. My question is how do you tell the current page you loaded is a internet or intranet in IE 9 or 10? Since I could not find the status bar like those ones in IE 7 or 8

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