The title element in the head section should be non-empty. All HTML and XHTML documents, including those in individual frames in a frameset, should have a title element in the head section that defines in a simple phrase the purpose of the document.
The engine scans for an empty
<title> element inside the document
A descriptive document title allows users to quickly and easily identify whether the information contained in the web page is relevant to their needs.
<html> <head> <title>Example Title</title> </head> <body> ... </body> </html>