The European Commission has initiated a formal investigation into Alibaba's AliExpress for potentially breaching the Digital Services Act (DSA) over concerns including the sale of fake medicines, food, dietary supplements, and the presence of pornographic content on its platform. This marks the first time an online marketplace faces investigation under the DSA, highlighting concerns over product recommendations, content moderation, and the transparency of its internal complaint handling mechanism. The investigation could lead to significant fines for AliExpress if found in violation of the DSA, particularly in areas related to consumer health risks and the protection of minors.