Regional
Internet Registries (RIRs) and Domain Name Registries (DNRs)
have
historically maintained a lookup service to permit public access
to some
portion of the registry database. Most registries offer the
service
via the WHOIS protocol [RFC3912], with additional
services
being
offered via World Wide Web pages, bulk downloads, and other
services,
such as Routing Policy Specification Language (RPSL)
[RFC2622].This
document records an inventory of registry data objects to
facilitate
discussions of registration data objects. The
Registration
Data Access Protocol (RDAP) ([RFC7480], [RFC7482],
[RFC7483], and [RFC7484]) was developed using this inventory
as
input.
=> Some data elements were not supported by all
RIRs, and
some were given different labels by different RIRs. Also,
there were
identical labels used for different data elements by
different RIRs.
o All of
the 124 domain registries have the object names in their
responses,
although they are in various formats.
o Of the
118 WHOIS services contacted, 65 registries show their
registrant
contact. About half of the registries (60 registries)
support
admin contact information. There are 47 registries, which
is about one third of the
total number, that have technical and billing
contact information. Only seven of the 124 registries give their abuse email in
a "remarks" section. No explicit abuse contact information is
provided.
o There are mainly two
presentation formats. One is key-value; the
other is data block format.
Most of the
domain-related WHOIS information is included in the top
10 data elements.
Other information like name server and registrar
name is also supported
by most registries.
Nathalie Coupet