Google Search Console is Previously called Google Webmaster. It is Interface between your website and google search engine. It is used for handling xml sitemap, robots.txt. It is also used to check your website for any errors, broken pages, site indexing, etc. It also help to identify technical issues related to your site.
The Google Search Console is a free web analysis tool offered by Google. With the tool, both websites and apps can be analyzed and monitored. Alongside central information on the page and off page factors, users can also receive notifications about unnatural links, if their website has been hacked or the condition of the registered website or app via the Search Console.