Second-Level Domains

In the Domain Name System (DNS) hierarchy, a second-level domain (SLD) is a domain that is directly below a top-level domain (TLD). For example, in, example is the second-level domain of the .com TLD.Second-level domains commonly refer to the organization that registered the domain name with a domain name registrar. Some domain name registries introduce a second-level hierarchy to a TLD that indicates the type of organization intended to register an SLD under it. For example, in the .uk namespace a college or other academic institution would register under the ccSLD, while companies would register under
Posts about Second-Level Domains
  • .now and .realestate will be restricted, but Donuts keeps .tires open

    … It was a battle between open and restricted registration rules this week, as three more new gTLD contention sets were resolved between applicants with opposing policies. Donuts won .tires (open), Amazon won .now (closed) and the National Association of Realtors won .realestate (restricted). Donuts beat Goodyear and Bridgestone — two…

    Kevin Murphy/ DomainIncite- 4 readers -
  • .nz second-level names now available

    … The New Zealand Domain Name Commission has started making second-level domains under .nz available for the first time. Like .uk, which opened up the second level this year, .nz names have previously only been available at the third level, under, and over a dozen other extensions. But from this week, existing registrants…

    Kevin Murphy/ DomainIncite- 2 readers -
Get the top posts daily into your mailbox!