The European Union’s top court upheld an earlier antitrust ruling against Google, dealing a major blow to the tech giant’s business model. The European Court of Justice’s decision affirms a 2018 ruling that found Google unfairly leveraged its market dominance in online search to promote its own shopping service over competitors. Google must now pay a $4.1 billion fine, one of the largest antitrust penalties imposed by the EU. The court rejected Google’s argument that its practices were aimed at improving user experience. The ruling could have far-reaching implications for how Google operates its search engine and other services. It also sets a precedent for increased regulatory scrutiny of big tech companies’ business practices in Europe and potentially elsewhere.