Next to your domain name, click View Details in the Status column.
Click Advanced DNS settings or Manage domain (for Google Domains).
You’ll find the sign-in name and password for your domain host account.
After you sign in, you can edit your domain’s DNS records, unlock your domain, or transfer your domain.
Note: If you don’t see these settings, it means you didn’t purchase your domain through Google. Instead, you must sign in to your domain host directly.