AMSTERDAM, Nov 14 (Reuters) - The European Commission on

Thursday said hotel reservation website Booking.com must now

comply with strict EU obligations, following its designation as

a "gatekeeper" under the Digital Markets Act in May.

The Digital Markets Act (DMA) is one of the most stringent

regulations targeting tech giants' market dominance, imposing

tougher obligations to moderate content, allow fair competition

and make it easier for consumers to switch between services.

It designates companies with more than 45 million monthly

active users and 75 billion euros ($79 billion) in market

capitalisation as gatekeepers, providing a core platform service

for business users.

If a gatekeeper does not comply with the DMA, the Commission

can impose fines of up to 10% of the company's total worldwide

turnover, which can go up to 20% in case of repeated

infringements. It can also impose limits on takeover activity.

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