NIS 2 Law, Section 3 (7): DNS service provider: An entity that provides
a) publicly available recursive domain name resolution services to Internet end-users, or
b) authoritative domain name resolution services for third-party use,
excluding root name servers.
NIS 2 Law, Section 3 (32): Top-level domain administrator: An entity delegated a specific top-level domain and responsible for managing the top-level domain, including registering domain names under the top-level domain and the technical operation of the top-level domain, which includes operating its name servers, maintaining its databases, and distributing top-level domain zone files to name servers, whether any of these operations are performed by the entity itself or outsourced, but excluding situations where top-level domain names are used solely by an administrator for its own use.
NIS 2 Law, Section 3 (2): Cloud computing service: A digital service that enables on-demand management and provides broad remote access to a scalable and flexible pool of shareable computing resources, including where these resources are distributed across multiple locations.
NIS 2 Law, Section 3 (5): Data center service: A service that includes structures or groups of structures intended for the central storage, interconnection, and operation of IT and network equipment providing data storage, data processing, and data transport services, as well as all facilities and infrastructure for energy distribution and environmental control.
NIS 2 Law, Section 3 (17): Content delivery network: A network of geographically distributed servers aimed at ensuring high availability, access to, or fast delivery of digital content and digital services to Internet users on behalf of content and service providers.
NIS 2 Law, Section 3 (31): Trust service provider: A natural or legal person that provides one or more trust services, either as a qualified or non-qualified trust service provider.
NIS 2 Law, Section 3 (34): Managed service provider: An entity that delivers services related to the installation, management, operation, or maintenance of ICT products, networks, infrastructure, applications, or other network and information systems through support or active management performed either on the customer’s premises or remotely.
NIS 2 Law, Section 3 (33): Managed security service provider: A managed service provider that performs or assists with activities related to the management of cybersecurity risks.
NIS 2 Law, Section 3 (23): Online marketplace: A service using software, including a website, part of a website, or an application operated by or on behalf of the trader, that enables consumers to conclude distance contracts with other traders or consumers.
NIS 2 Law, Section 3 (24): Online search engine: A digital service that allows users to enter queries to search, in principle, all websites or all websites in a specific language based on a query on any subject using a keyword, voice search, phrase, or other input, and displays results in any format containing information about the desired content.
NIS 2 Law, Section 3 (25): Social networking platform: A platform that enables end users to connect with each other across different devices, notably through chats, posts, videos, and recommendations.
Go to the NIS 2 Law on retsinformation.dk (in Danish)