| Subject | English | Icelandic |
| comp., MS | domain name | lénsheiti (The name given by an administrator to a collection of networked computers that share a common directory. Part of the DNS naming structure, domain names consist of a sequence of name labels separated by periods) |
| comp., MS | domain name registrar | skráningaraðili lénsheitis (The owner of the customer relationship with customers who buy second-level domains. There may be many registrars for a single top-level domain. Registrars maintain detailed customer information in their databases, such as the customer's contact address, telephone number, and e-mail address. Customers usually manage their second-level domains at the registrar's Web site, and the registrar updates the registry database when necessary (for example, when a customer renews a domain name)) |
| comp., MS | Domain Name System | Lénsheitakerfi (A hierarchical, distributed database that contains mappings of DNS domain names to various types of data, such as IP addresses. DNS enables the location of computers and services by user-friendly names, and it also enables the discovery of other information stored in the database) |