Safari by default displays only a shortened version of the URL.  To display the full web address, you can enable the option in Safari Preferences.

To do so, Click Safari > Preferences > Advanced >  Then check the box next to Show full Website address

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Here is what you see without this enabled:

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When you check the box for full website address – this is what displays:     Screen Shot 2016-02-09 at 4.22.51 PM 1.png

You will know exactly where you are on a website when viewing the full address.