None are working at the moment.
Might be that links are not accessible in your country? Or you have to clean up your browser content/history and try access again. Because I am still able to access this link.
I just tried visiting the website too but I got an error saying Site is not reachable. Not sure of what exactly is the issue. Maybe someone else should try visiting it and give feed back
Guy's if you are trying to access that on mobile then it is showing error. But it's working fine on system. I guess admin have to take care about it if more people are facing same problem.
Nope, I accessed from PC yesterday, it shown an error of connection too. By "system" you mean accessing from pc, right? I haven't try them today, though
I was able to access it yesturday without any issues and just tried again now and had no issues either, have you tried clearing your browser cache or accessing it via incognito mode?