Adding a domain you own to your DigitalOcean account lets you manage the domain’s DNS records with the control panel and API. Domains you manage on DigitalOcean integrate with DigitalOcean Load Balancers and Spaces to streamline automatic SSL certificate management.
The Domains and DNS management service now only allows you to add domains with known top-level domains (TLDs) publicly recognized by ICANN.
For more information, see all Domains and DNS release notes.