Online platform giants will be forced to abide by a broad range of obligations as part of ambitious new plans laid out by the European Commission in its Digital Markets Act (DMA) and Digital Services Act (DSA) on Tuesday (15 December). The DMA proposals will see so-called ‘gatekeeper platforms’ prohibited from engaging in practices deemed to be of detriment to “contestability and fairness” in online markets. Fines for non-compliance with the rules have been pitched at a maximum of 10% of a company’s annual worldwide turnover. Platforms that engage in “systematic non-compliance” of the rules could come in for other remedies, including behavioral orders but also “last resort” options of divestments or breakups. However, the latter options are unlikely since those tools are already available in the Commission’s arsenal of antitrust capacities.