Starting March 30, 2018, it will be impossible to create new accounts for goo.gl. From April 13, 2018 only existing users will be able to create short links on the goo.gl console. You will be able to view your analytics data and download your short link information in csv format for up to one year, until March 30, 2019, when the website will be completely discontinued.
Google URL Shortener shortens long links to make them easier for sharing. It is intended to be the stablest, most secure, and fastest URL shortener on the web.