An open data portal is any online platform, e.g. a website, which supports users in accessing collections of open data. In many cases open data portals present the data of the organization which hosts the portal.
Source: Wikipedia contributors. (2021, August 9). Open data portal. Wikipedia, The Free Encyclopedia.
Online: https://en.wikipedia.org/wiki/Open_data_portal
data.europa.eu is the the official European Union’s portal to European data. It aims at promoting the re-use of its institutions’ and Member States’ open data among its citizens, businesses and organizations in general.
Source: data.europa.eu.
Online: https://data.europa.eu/en