Get your website on Google Search Console

Google Search Console is a free service that lets you learn a great deal of information about your website and the people who visit it. You can use it to find out things like how many people are visiting your site and how they are finding it, whether more people are visiting your site on a mobile device or desktop computer, and which pages on your site are the most popular.
It can also help you to find out and fix website errors. In that you will need to submit a sitemap, and create and check a robots.txt file also.