The title of a webpage as seen in search engine result pages and meta information in HTML is not displayed on the page and is “visible” only to search engine crawlers.
Title-tag is one of the most important pieces of information for search engine.Crawler find for link they first check the title tag and after that link or content so,title tag must be similar to the keyword..
The title tag is usually considered the most important on-page element in the SEO community. It is important to realize, however, that you should put your keywords earlier in the title tag.