With our service you can create users on your selected groups.
The account owner is the main user. It is up to him to decide on the purchase of subscriptions, the issuance of privileges to other users.
A specialist is a user, who has access to most part of the functionality, provided by our service.
A guest is any user who can only see domain statistics, if you allow him to do so by opening access to the domain by guest link. You don't need an account to be a guest.