Feature request: Blacklist

[Ketchup901]

The API loves giving me slow servers at the top of the list. It would be a very nice feature if you could blacklist certain servers that are known to be slow.

[kewlfft]

I'm not actively supporting the tool at the moment but would accept a PR

[fungilife]

Site is gone (server list) api is gone no response, api server

last one used # Using DNS 147.182.243.49 to retrieve api.opennicproject.org's IP
# Using 116.203.98.109 as API host 

not responsive, all previous nic servers active but all have 1s lag when it used to be 15-80ms

Site seems to be advertising domain registrations ..