The Google Search Console is a must-have for every website and basically is the connection between your website and the google search index.
By setting up your website here you help google to understand and index you page. Also you’ll be notified of any issues Google might have or find on your page (like 404, non-indexable sites, ect.)
Also you get very nice data on how your page is actually ranking in the search results: average rank for keywords, which keywords are ranking for which page and a lot more.