It is the first thing which a user sees first of all on your page. It is a line which appears in the search engine result. The user can easily get the knowledge about the page content with the help of page title. Page title should be understandable and unique. Every title should be different from the rest.
Title tag is written in html documents. It should be of seventy characters. This title is displayed in the result of google. It is an important factor of SEO. It should be meaningful and understandable.
Some Common Mistake
Never keep a duplicate title. Because search engine shows all the titles having duplicate posts. Duplicate post provides a hindrance in the way of searching. Duplicate title has a bad effect on the SEO. Don’t keep on renaming the title after publishing it.