Often, you configure DNS settings at the same service where you registered your domain. You'll also need administrative access to the domain name system (DNS) settings for each domain. In every case, you'll need G Suite administrator access to the admin console for your domain.
See the details below as you choose among these three options. The third option-a separate G Suite account for a different domain-may also make sense in certain circumstances. The first two domain options let a G Suite administrator add one or more domains within the context of an existing G Suite setup.
