The HTML element
<title> text </title>Is used to specify the title of a document. It is used within the <head> ... </head> tags, so does not affect the appearance of the main page of a document.
The text associated with the tag is displayed in the title bar of the browser window and will also, commonly, be used by browsers in navigation lists and bookmark files. Many browsers may only display part of a long title so it is particularly important to choose a short and appropriate title for a page.