Google continues to stymie competition in online shopping, despite a record fine from European authorities and an order to modify its behavior, rivals say.

The European Union in June fined Google parent Alphabet Inc. €2.4 billion ($2.9 billion) and ordered it to treat competing shopping services “no less favorably” than its own. The bloc’s decision said Google had abused its dominance to favor its own comparison-shopping service over competitors such as Kelkoo Group Ltd. and Compare Group BV.

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