The aim of the invention is to establish and update a user interface allowing a user to access data pages in a data network. Said aim is achieved by the fact that selected data pages are made accessible to the user on the user interface by means of a display element while said data pages are accessed by accessing the respective display element, contents being stored on the data pages. An allocated set of content data, in which characteristics describing the respective content that is stored on the data page are stored, is created for the data pages. In order to determine the selected data pages, a set of user data is created by means of which a searched content is described. The sets of content data are compared with the set of user data regarding the degree of correspondence, and data pages in which the degree of correspondence between the respective set of content data and the set of user data reaches and/or exceeds a predefined threshold value are displayed on the user interface by means of display elements.