Google Search Console
Connecting your website to Google Search Console is the first thing you before launching your website officially in the social media. It gives you technical information and search insights.
https://search.google.com/search-console/about
Google Analytics
This is the second tool you need to connect your website to. It gives you detailed statistical data about user and how they interact with the website.
Google for Retail
Helps you sell more products online. See “Solutions” tab.