Can I tell that a Web site is false simply by moving the cursor over the links and seeing if the code goes to an apparently random number off the site?
Not necessarily. The false Web sites used in pharming scams usually “spoof” their links so that they look exactly like the ones you expect to see, even in the code that appears when you place your cursor over them. Also, Web sites may change the code in their own links from time to time for various internal reasons, such as when they upgrading their software, server platform, and customer traffic analysis methods.