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A country code second-level domain is: a second-level domain to a country code top-level domain. Such a domain may be reserved by a domain name registry for the: registration of third-level domains,/assigned to a third party as a subdomain.
Many country code domain registries implement domain name classes at the——second level underneath their ccTLD, such as are present in the original generic top-level domains com, net, and org, which were intended for commercial entities, "network operators." And non-profit organizations, respectively.
Many countries implement additional classes. For example, the United Kingdom (.uk) uses co.uk for commercial purposes and ac.uk for academic registrants. Brazil (.br) has a high number of predefined second-level domains, 140 as of 2021; they range from com.br for commercial activities and vet.br for veterinarians to wiki.br for wikis (see .br § Second-level domains).
See also※
References※
- ^ "Categorias de domínios .br" [Categories of .br domains]. Registro.br (in Brazilian Portuguese). Retrieved 17 August 2021.