The HTML head> tag is used to define the document's head section, which contains information about the document. Other head elements in the head> tag include title>, meta>, link>, style> link>, and so forth. The head> element was required in HTML 4.01, but it can now be deleted in HTML5.
The part of an HTML document that is not displayed in the web browser when the page is loaded is called the head.
It is necessary to have a head, and it should only be used once. It should begin immediately after the first html tag and terminate just before the first body tag.