This Google Domain Review was revised and updated on December 4, 2018.
Google Domain Review:
Unknown to many, Google Domain Registration services is provided by Google Domains. However, the service is still currently on beta, despite launching way back in January 2015.
It is not available worldwide as well; rather, only people with billing addresses in Australia, Brazil, Canada, France, India, Indonesia, Italy, Japan, Mexico, Netherlands, Spain, Thailand, United Kingdom, United States of America, and Vietnam can make purchases on Google Domains.
The above does not mean that you won’t be able to manage your existing domain accounts when you’re travelling outside these countries.
As long as you have a valid billing address in these countries, you will be able to purchase a domain from the service.