I thought that the official instance (nitter.net) works and that it works but visited it now, and it seems it doesn't have a valid certificate since Jan24th.
If you're in Chrome it likes to give you a full screen "oh no you can't go to this website!" with no visible override, but if you type in "thisisunsafe" it'll fly by it.
I wish Chrome would just let me have the damn button. I'm not a five year old.
