A well referenced site will be more easily accessible to users who are looking for information related to this site. You can add keywords in the SEO tabs in your products and categories in the admin panel Kinow.
What do these meta tags mean ?
Meta Title: This tag describes with a generalist approach the content of a document. Thus, it sends a signal to the search engines (Google, Bing, Yahoo ...) that the document deals with this or that subject. This allows these search engines to sort, position and evaluate your web page. A Title meta tag must primarily contain key words or phrases related to the content on the web page in question. It is sufficient to put about 55 characters (it means 4-5 words). The content of the tag must be unique on each page. The title (visible on the search engines) must be catchy and make click the user. It is very important to choose a title that will be searched by users.
Meta description: usually consisting of a few lines, it is used to describe the content of the web page which is useful for users and the good referencing of your website. Internet users can see this quick description of your web page on search engines, below the meta title tag. A bad meta description or a non-configured meta description do not give a good first contact and a lost traffic. Its writing is an important step in the creation of a web page. Attractive and optimized, it will be a source of traffic and increase your click rate. The ideal length of a meta description is about 200 and up to 230 characters.
Meta keywords: is not a priority in SEO fields. You can fill them with certain keywords related to the content of the page, but the search engines do not really take them into account anymore.
Friendly URL: used to reach the page in question, for example "brad-pitt" for http://peoplemagazine.com/brad-pitt.