I can't open the GitHub website on any browser and it was running before I'm not using any proxy server. when I'm trying to open it in the browser or connect via terminal cloning or any communication with that website it gives me an error. using MacBook(macOS Big Sur).
The problem has been Solved by changing my IP For Github
192.30.253.112 this was my Ip Adress For Githup befor I change it to
140.82.112.4
in /etc/hosts file by terminal
after the change I cleared the cache memory by command:
sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder
Then It opens ^_^.