Article 6 › 8
DMA
The gatekeeper shall provide advertisers and publishers, as well as third parties authorised by advertisers and publishers, upon their request and free of charge, with access to the performance measuring tools of the gatekeeper and the data necessary for advertisers and publishers to carry out their own independent verification of the advertisements inventory, including aggregated and non-aggregated data. Such data shall be provided in a manner that enables advertisers and publishers to run their own verification and measurement tools to assess the performance of the core platform services provided for by the gatekeepers.
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Source: EUR-Lex CELLAR · retrieved 2026-08-27