Probably because of the big cookie-banner (which is not allowed in the Netherlands with current privacy laws). If you use an ad blocker you just see a big beige screen.
Please just don't track users, anonymise your analytics. The Dutch AP has a PDF guide on that.
I had a potential client, an accountant. They had their own, uh, system within a spreadsheet. They wanted me to program another system to be able to send their spreadsheet output into our governments IRS. Did a little back-and-forth but could not convince them to drop the idea.