I don’t understand why anyone that serves the German market would use Cloudflare. Regardless of who is at fault, you are losing a lot of customers that way.
Don't know. Germans are stingy. I'm German, I live in Germany yet I don't even localize my software to German anymore because German downloads wouldn't convert in any meaningful way. (Even when I had German localization).
It's just anecdotal of course but every other dev I talked to would confirm this unless they had some very germany-specific product.
Their service is good on a technical level but they have the most aggressive and obnoxious sales reps. They scammed me twice with open lies on the phone (probably abusing also the fact that german is not my mother tongue) and had to fight for ages with their customer service later to get the issue resolved.
If you wanna go with them, buy on their website and hang up if anyone from 1und1 ever calls. They are official 1und1 reps and they will prove it you yet behave like scammers.
DT called me on phone over and over again, so much that I had to block them on my FritzBox. Several times they even knocked at my door.