Google says, to date, millions of people have used the service to manage a domain. It has added more features and tools to Domains over the years. Folks in 26 countries can now use the full version of the service.
Of course, Domains ties in with other Google services. Customers can, of course, use their domain in their email address. You can build a website or store with Google Sites and use it on a business profile on Maps and in Search. Google's DNS and security tools are available too. There's also the option to build a site or store for a domain purchased through Google via platforms like Wix, Shopify, Squarespace, Weebly and Bluehost.
To mark the occasion of Domains becoming a fully formed entity, Google's offering new and returning users a discount until April 15th. You can get 20 percent off a single domain registration or transfer-in of a domain from another registrar with the code DOMAINS20.
For a bunch of reasons, it feels like a lifetime has passed since 2015, so I wouldn't blame anyone for forgetting the existence of Google Domains. Still, it has finally emerged from incubation without being scuttled off to the long list of products Google has killed.