X, the social media platform formerly known as Twitter, is the latest U.S. technology company under scrutiny by the European Commission.

Margrethe Vestager, the EU’s tech regulation chief, asserts that X fails to meet the standards set by the Digital Services Act (DSA), specifically in areas related to dark patterns, advertising transparency, and data access for researchers.

On Friday, EU regulators concluded that X had violated EU online content rules, including misleading users with its blue checkmark verification system. The charges are the first issued under the DSA, following a…