People searching Google (or other search engines) see your title and metadescription before anything. Your title is especially important because it's the window to your website.
Title:
A title tag is an HTML element that specifies the title of a web page. Title tags are displayed on search engine results pages (SERPs) as the clickable headline for a given result, and are important for usability, SEO, and social sharing. The title tag of a web page is meant to be an accurate and concise description of a page's content.
Optimal title length
Google typically displays the first 50–60 characters of a title tag. If you keep your titles under 60 characters, our research suggests that you can expect about 90% of your titles to display properly.
Meta title tags are a major factor in helping search engines understand what your page is about, and they are the first impression many people have of your page. Title tags are used in three key places:
(1) search engine results pages (SERPs),
(2) web browsers, and
(3) social networks
Unique titles help search engines understand that your content is unique and valuable, and also drive higher click-through rates.
Meta:
The meta description is an element that provides a brief summary of a web page. Search engines such as Google often display the meta description—typically up to 160 characters long—in search results where they can highly influence user click-through rates. The meta description tag serves the function of advertising copy. It draws readers to a website from the SERP, and thus is a very visible and important part of search marketing.
It's important to note that Google and other search engines bold keywords in the description when they match search queries. This bold text can draw the eyes of searchers, so you should match your descriptions to search terms as closely as possible.
