[perlgeek]

my ISP's DNS resolver just returns NXDOMAIN for that.

     $ dig @8.8.8.8 sci-hub.se. +short
     186.2.163.219

[semi-extrinsic]

what happens if you try the .st TLD?

.se is Sweden, I was surprised to see that they haven't taken down sci-hub.

[perlgeek]

sci-hub.st works here (Telekom in Germany).