The domain_type field will be present in the response if the domain type has been categorized. The table below shows the full list of domain types and their descriptions:

Domain_typeDescription
bizThe domain of a company.
disposableDisposable domain.
eduAn educational institution.
freeispFree ISP (internet service provider).
govA government institution.
orgA non-profit organization.
paidispPaid ISP.
parkedThe domain does not have an active website.
privacyThe domain is used to protect the privacy of the user.
wirelessWireless domain. Do not send unsolicited emails.