When you type a period after a web address and then press enter or spacebar, what happens?

The question seems incomplete but I guess it is asking the action taken in Microsoft Office Word software. 
When you type a period after a web address and then press enter or space-bar the software formats the given address as a hyperlink. A hyperlink is a link which you can access instantaneously from the document by tapping it or hovering over it, it will lead to the information related to it.

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