Google Domains has moved over to a .Google TLD.
You might remember last April’s Fool’s day when Google temporarily put up “com.google”.
This is for real and in a post Google says:
Introducing domains.google — a new URL for Google Domains
“We’re so excited about new domain name endings, we decided to use one ourselves! Starting today, you can find us at domains.google”
“Like it? Get a unique URL of your own. There are hundreds of new domain name endings to choose from — from the practical (.florist), to the artistic (.vision) and the just plain fun (.ninja). Check them out now at domains.google.”