It is pretty common that "weird" tlds get blocked more or less whole sale in places you might not expect.
The reason is spam. Before these can get wide spread "normal" adoption they can be heavily used by spammers. Its hard to say if that is because they have desirable look-a-likes available, or if its because the first year is offered at a deep discount. So, systems will get flooded, and on inspection they will see that they don't have any legit traffic from those tlds and will whole sale block them.
The reason is spam. Before these can get wide spread "normal" adoption they can be heavily used by spammers. Its hard to say if that is because they have desirable look-a-likes available, or if its because the first year is offered at a deep discount. So, systems will get flooded, and on inspection they will see that they don't have any legit traffic from those tlds and will whole sale block them.
.xyz is kind of infamous for being in this situation. https://news.ycombinator.com/item?id=28554400
I have no idea if that applies to .coop though.