<title> element is a part of HTML document that are required by all the web page to define the title of the website. When you define the title of the web page, it will going to display on the web browser tab, bookmark favorite title and also helps in search engine.
For demo, we defined the title of the web page as Jorcus.
<!DOCTYPE html> <html> <head> <title>Jorcus</title> </head> <body> Page Content... </body> </html>
Here is the output of the browser, the web page title has been change to Jorcus.
When you bookmarked on the google, the title will be the one you have defined with