|HTML Title Tag|
Web browsers usually display title tag in a window's title bar when the window is open, and in the task bar when the window is minimized.
It may become the default filename when saving the page.
The link to your site that is normally displayed in search results will contain text derived from the title tag (though this can be over-written by other means).
Though it is not necessary to write something in the tag (i.e. you can leave it empty and the title bar of the browser will read “Untitled Document”), for SEO purposes you should use it properly.
Having no page title makes it difficult to find the page in any search engine.
The title tag text is the first information about your website that the user sees. This is why it must be informative and attractive.
You want your visitors to follow the link and navigate your site. The best title for a page in terms of SEO is one which fits with the content.
Using the Title tag increases your chances to rank well for your particular keywords.
The Title tag should identify the content of your page. Follow these guidelines:
As an example for a site selling electrical equipment called "ElectroStore Online":
[Unoptimized] <title>ElectroStore Online - Electrical Products for Sale</title>
[Optimized] <title>Electrical Products from ElectroStore Online</title>