A lot of European cloud machines geolocate to the Netherlands. A lot of AWS instances use IPs from the Netherlands, although they are running somewhere else. No idea why, but it's a pattern I've observed many times. Get some cloud instance in Europe and it's often going to be geolocated to Amsterdam.
Amsterdam, specifically Science Park, is basically the biggest internet hub in Europe. Frankfurt is second. A lot of stuff is there. It also helps they don't have overly strict policing like in Germany.