I'd like to block the webpage mobile.twitter.com using etc/hosts. Using this code, I can block many websites including twitter.com, but mobile.twitter.com works normally
127.0.0.1 127.0.0.1 twitter.com 127.0.0.1 127.0.0.1 mobile.twitter.com *Windows 10
31 Answer
As @davidgo pointed out in the comments, you just need to clear all the cache data from your browser (if it's Chrome, just press Ctrl + Shift + Delete) but your host file is alright.
After clearing cache, open Command Prompt and flush your DNS with the following command: ipconfig/flushdns. This should work.