Over half a billion tourists in Europe booked accommodation through an internet-based platform in 2019, according to a new statistical series from the Eurostat.
This is the first of an experimental series compiled with data sharing from Airbnb, Booking.com, Expedia and Tripadvisor.
It will be updated over the coming months.
The data shows that on average 1.5 million tourists a night stayed in short stay accommodation booked through one of the four platforms in 2019.
The total number of guest nights across the year was 554 million.
Spain was the most popular destination and accounted for 112 million - or one in five guest nights. This was followed by France and Italy.
Paris was the most popular city destination, accounting for 15 million guest nights. The city was followed by Barcelona and Lisbon.
Dublin was the 20th most popular city destination, coming after Warsaw and ahead of Amsterdam.
The number of guest nights booked in Ireland through the platforms was 7.193 million, of which 1.587 million were domestic tourists and 5.606 million were from abroad.
67% of those booking short stay accommodation were foreign tourists across Europe. That percentage in Ireland was 78%.
Dublin accounted for 2.782 million guest nights or 39% of stays. The city was followed by Galway with 475,000 million guest nights and Cork with 148,000.