| DomainName | String | 70 | Yes | The domain name to register |
| RegistrantOrganizationName | String | 255 | No | Organization of the Registrant user |
| RegistrantJobTitle | String | 255 | No | Job title of the Registrant user |
| RegistrantFirstName | String | 255 | Yes | First name of the Registrant user |
| RegistrantLastName | String | 255 | Yes | Second name of the Registrant user |
| RegistrantAddress1 | String | 255 | Yes | Address1 of the Registrant user |
| RegistrantAddress2 | String | 255 | No | Address2 of the Registrant user |
| RegistrantCity | String | 50 | Yes | City of the Registrant user |
| RegistrantStateProvince | String | 50 | Yes | State/Province of the Registrant user |
| RegistrantStateProvinceChoice | String | 50 | No | StateProvinceChoice of the Registrant user |
| RegistrantPostalCode | String | 50 | Yes | PostalCode of the Registrant user |
| RegistrantCountry | String | 50 | Yes | Country of the Registrant user |
| RegistrantPhone | String | 50 | Yes | Phone number in the format +NNN.NNNNNNNNNN |
| RegistrantPhoneExt | String | 50 | No | PhoneExt of the Registrant user |
| RegistrantFax | String | 50 | No | Fax number in the format +NNN.NNNNNNNNNN |
| RegistrantEmailAddress | String | 255 | Yes | Email address of the Registrant user |
| TechOrganizationName | String | 255 | No | Organization of the Tech user |
| TechJobTitle | String | 255 | No | Job title of the Tech user |
| TechFirstName | String | 255 | Yes | First name of the Tech user |
| TechLastName | String | 255 | Yes | Second name of the Tech user |
| TechAddress1 | String | 255 | Yes | Address1 of the Tech user |
| TechAddress2 | String | 255 | No | Address2 of the Tech user |
| TechCity | String | 50 | Yes | City of the Tech user |
| TechStateProvince | String | 50 | Yes | State/Province of the Tech user |
| TechStateProvinceChoice | String | 50 | No | StateProvinceChoice of the Tech user |
| TechPostalCode | String | 50 | Yes | PostalCode of the Tech user |
| TechCountry | String | 50 | Yes | Country of the Tech user |
| TechPhone | String | 50 | Yes | Phone number in the format +NNN.NNNNNNNNNN |
| TechPhoneExt | String | 50 | No | PhoneExt of the Tech user |
| TechFax | String | 50 | No | Fax number in the format +NNN.NNNNNNNNNN |
| TechEmailAddress | String | 255 | Yes | Email address of the Tech user |
| AdminOrganizationName | String | 255 | No | Organization of the Admin user |
| AdminJobTitle | String | 255 | No | Job title of the Admin user |
| AdminFirstName | String | 255 | Yes | First name of the Admin user |
| AdminLastName | String | 255 | Yes | Second name of the Admin user |
| AdminAddress1 | String | 255 | Yes | Address1 of the Admin user |
| AdminAddress2 | String | 255 | No | Address2 of the Admin user |
| AdminCity | String | 50 | Yes | City of the Admin user |
| AdminStateProvince | String | 50 | Yes | State/Province of the Admin user |
| AdminStateProvinceChoice | String | 50 | No | StateProvinceChoice of the Admin user |
| AdminPostalCode | String | 50 | Yes | PostalCode of the Admin user |
| AdminCountry | String | 50 | Yes | Country of the Admin user |
| AdminPhone | String | 50 | Yes | Phone number in the format +NNN.NNNNNNNNNN |
| AdminPhoneExt | String | 50 | No | PhoneExt of the Admin user |
| AdminFax | String | 50 | No | Fax number in the format +NNN.NNNNNNNNNN |
| AdminEmailAddress | String | 255 | Yes | Email address of the Admin user |
| AuxBillingOrganizationName | String | 255 | No | Organization of the AuxBilling user |
| AuxBillingJobTitle | String | 255 | No | Job title of the AuxBilling user |
| AuxBillingFirstName | String | 255 | Yes | First name of the AuxBilling user |
| AuxBillingLastName | String | 255 | Yes | Second name of the AuxBilling user |
| AuxBillingAddress1 | String | 255 | Yes | Address1 of the AuxBilling user |
| AuxBillingAddress2 | String | 255 | No | Address2 of the AuxBilling user |
| AuxBillingCity | String | 50 | Yes | City of the AuxBilling user |
| AuxBillingStateProvince | String | 50 | Yes | State/Province of the AuxBilling user |
| AuxBillingStateProvinceChoice | String | 50 | No | StateProvinceChoice of the AuxBilling user |
| AuxBillingPostalCode | String | 50 | Yes | PostalCode of the AuxBilling user |
| AuxBillingCountry | String | 50 | Yes | Country of the AuxBilling user |
| AuxBillingPhone | String | 50 | Yes | Phone number in the format +NNN.NNNNNNNNNN |
| AuxBillingPhoneExt | String | 50 | No | PhoneExt of the AuxBilling user |
| AuxBillingFax | String | 50 | No | Fax number in the format +NNN.NNNNNNNNNN |
| AuxBillingEmailAddress | String | 255 | Yes | Email address of the AuxBilling user |
| Extended attributes | String | No | Yes | Required for .us, .eu, .ca, .co.uk, .org.uk, .me.uk, .nu , .asia, .com.au, .net.au, .org.au, .es, .nom.es, .com.es, .org.es, .de, .fr TLDs only |