I found it on a subscription blacklist service under 'gambling'. I got it re-assigned to computing/ecommerce, but am still puzzled as to how it got it's original classification.
I got two cases where they stated that they can't access dragonbox.de from within Canada, seeing only a message like ""You can't access the shop from your country. Please apologize for the inconvenience."
So I thought it might be good to bring in on the table, maybe I was too quick about it - sorry
You cannot access our store from your country. We apologize for the inconvenience.
It's definitely something from the store software. I don't have any filters or proxies in the way, and the page is being served from https://www.dragonbox.de/en/.