The role of a TLD Registry vs the role of a Registry Back-end Operator
In recent years, the activity of TLD registries has become more complex. Reasons for this include:
- much larger number of registrations (in the 10s of thousands or millions, depending in the kind of TLD
- higher expectations regarding security and availability
- an increase in regulation, best practice requirements
- higher diversity of registries, leading to specialized and advanced processing rules.
As a result the technical activity of running a TLD registry has become a specialized activity, distinct from TLD policy-making, outreach, marketing and oversight.
The typical solution is for a TLD registry to outsource the technical operation to a so-called Technical Backend Operator.
(In earlier terminology, contracts differentiated a "TLD Sponsoring Organization" from the "Registry Operator", meaning that the latter had mostly the technical responsibilities. Nowadays, it is expected that an entity referred to as "Registry" or "Registry and Sponsoring Organization" of a given TLD might outsource technical operations to a "Registry Back-end Operator" or "Technical Registry Operator".)
CORE's Technical Backend Activities
CORE has supported the launch of three TLDs as a Back-end Operator: .aero (2002), .museum (introduction of a registrar interface in 2003), and .cat (launch in 2006). While the services CORE provides to a given TLD may vary depending on the requirements, the typical responsibilities include:
- registration interface for registrars
- management interface for the registry or sponsoring organization
- registration rules
- statistics (including ICANN-require reporting)
- data deposits with Escrow operator
- special processing (sunrise, specialized name spaces)
- issues tracking for charter eligibility, disputes or policy enforcement



