Glossary of terms

DSA – Digital Services Act

directly applicable legal regulation of the European Union regulating online intermediary services.

Information society service

any service provided, usually for remuneration, at a distance, by electronic means and at the individual request of a recipient of service.

Intermediary service

one of information society services listed in the DSA (mere conduit, caching, hosting, online search engine).

Mere conduit

a service consisting of the transmission in a communication network of information provided by a recipient of the service, or the provision of access to a communication network.

Caching

a service consisting of the transmission in a communication network of information provided by a recipient of the service, involving the automatic, intermediate and temporary storage of that information, performed for the sole purpose of making more efficient the information's onward transmission to other recipients upon their request.

Hosting

a service consisting of the storage of information provided by, and at the request of, a recipient of the service.

Online platform

a hosting service that, at the request of a recipient of the service, stores and disseminates information to the public, unless that activity is a minor and purely ancillary feature of another service or a minor functionality of the principal service.

Online search engine

a service that allows users to input queries in order to perform searches of, in principle, all websites, or all websites in a particular language, on the basis of a query on any subject in the form of a keyword, voice request, phrase or other input, and returns results in any format in which information related to the requested content can be found.

Online marketplace

an online platform allowing consumers to conclude contracts with traders remotely. 

Very large online platform/very large online search engine (VLOP/VLOSE)

an online platform/online search engine which have a number of average monthly active recipients of the service in the Union of at least 45 million.

Online interface

any software, including a website or a part thereof, and applications, including mobile applications 

Recommender system

fully or partially automated system used by an online platform to suggest in its online interface specific information to recipients of the service or prioritise that information, including as a result of a search initiated by the recipient of the service or otherwise determining the relative order or prominence of information displayed.

Illegal content

any information which, in itself or by its reference to an activity, including the sale of products or provision of services, is not in compliance with Union law or the law of a Member State which is compliant with Union law, irrespective of the precise subject matter or nature of that law.

Content moderation

activities undertaken by providers of intermediary services, that are aimed, in particular, at detecting, identifying and addressing illegal content or information incompatible with their terms and conditions, provided by recipients of the service, including measures taken that affect the availability, visibility, and accessibility of that illegal content or that information, or that affect the ability of the recipients of the service to provide that information.

Trader

any natural person, or any legal person irrespective of whether it is privately or publicly owned, who is acting, including through any other person for purposes relating to their trade, business, craft or profession.

Recipient of the service

any natural or legal person who uses an intermediary service, in particular for the purposes of seeking information or making it accessible.

Consumer

any natural person who is acting for purposes which are outside their trade, business, craft, or profession.

Terms and conditions

all clauses, irrespective of their name or form, which govern the contractual relationship between the provider of intermediary services and the recipients of the service.

Internal complaint handling system

free electronic system of the provider of online platform for handling complaints against a decision taken by the provider.

Out-of-court dispute settlement body

The out-of-court dispute settlement bodies pursuant to Article 21 of the DSA serve to settle disputes between users and online platform providers. The user may submit the dispute to any of the independent bodies certified under the DSA. More information here

Trusted flagger

An important element of the Digital Services Act (DSA) is the status of the so-called trusted flagger. The role of trusted flaggers is to notify illegal content quickly and reliably in order to speed up and improve the process of removing such content from the online environment. More information here.

Vetted researcher

The DSA allows researchers unprecedented access to data from very large online platforms and online search engines. The aim is to enable analysis and monitoring of the impact of digital services on society, as well as to support independent supervision of compliance with DSA obligations. More information here.

Digital Services Coordinator

Article 49(1) of the DSA requires each Member State of the European Union to designate a "digital services coordinator". In the Czech Republic, the Czech Telecommunications Office has been designated as the coordinator. The Digital Services Coordinator is responsible for all matters related to national supervision under the DSA unless they have been delegated to another authority. Its duty is to carry out the entrusted tasks in an impartial, independent, transparent and timely manner. More information here.

European Board for Digital Services

In order to ensure a consistent application of the DSA, an independent advisory group on the supervision of intermediary services was set up at Union level - European Board for Digital Services (EBDS). The purpose of the Board is to support the European Commission in the enforcement of the DSA and to help coordinate the actions of the Digital Services Coordinators. More information here.

Information provided by the recipient of the service

any content uploaded, created or shared by users on online platforms, such as text, images, videos and other forms of media.

Systemic risks

risks arising from the design or operation of services of very large online platforms and very large online search engines and their related systems, including algorithmic systems, or from the use of their services.

Codes of conduct

voluntary commitments on behaviour by providers of intermediary services aimed at contributing to the proper application of the DSA.

Dark patterns

an online interface which misleads or manipulates users or otherwise materially distorts or impairs their ability to make free and informed decisions.

Country of destination

a Member State where the intermediary service is provided.

Country of establishment

a Member State where the main establishment of the provider of intermediary services is located or in which its legal representative is resident or established.

Main establishment

head office or registered office in which the provider exercises the principal financial functions and operational control.

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