I have tried on several tutorial on how to block websites using the host file, by adding
0.0.0.0 website address, or
127.0.0.1 website address
But it just does not work. Then I tried
0.0.0.0 www.google.com
It works! Google is blocked. So back to question, how to block krunker.io? Why it did not work with this step?
Blocking websites using host file, krunker.io