The Title tag is an HTML element that is used to display the Title of a web page. For search engines and social platforms it’s important that you write descriptive and engaging Title tags, based on the main focus keyword(s) of your page. Title tags are displayed as the clickable headline on the search engine results page after performing a search query.
Search engines use the Title tag as one of the most important on-page SEO ranking factors to determine the subject of a page. When a web page is considered relevant and authoritative enough for a specific query, search engines will display the Title tag of your page on the search results page (SERP).
Make sure you write relevant and engaging Titles to get the attention from potential visitors and maximize the Click Trough Ratio from the search engine results page.
Google uses a maximum width to determine when they will cut off a title tag. This number is not the same for mobile and desktop results, because they have simply more room when displaying a desktop search results page. To be sure your Title tag will be displayed completely it’s recommended to use a maximum of 60 characters (punctuation included).
Page source: <title>Relevant page title</title>