The Court of Justice upheld a €2.4 billion fine imposed on Google for favoring its own comparison shopping service over competitors in 13 countries of the European Economic Area. Google's practice of giving preference to its own service on search result pages was found to be discriminatory and not in line with fair competition.

The General Court had largely dismissed Google's challenge to the fine, but annulled the Commission's decision regarding potential anticompetitive effects on the market for general search services. Google and Alphabet appealed this decision to the Court of Justice, which ultimately upheld the General Court's judgment.

The Court of Justice clarified that EU law prohibits the abusive exploitation of a dominant position that hinders competition on the merits and harms consumers. While treating one's own products or services favorably is not always anti-competitive, in this case, Google's conduct was deemed discriminatory and not in line with fair competition practices.