URLs used by major vendors to detect Captive Portals
http://detectportal.firefox.com/success.txt
http://connectivitycheck.gstatic.com/generate_204
URLs used by major vendors to detect Captive Portals
http://detectportal.firefox.com/success.txt
http://connectivitycheck.gstatic.com/generate_204
1.1.1.1
1.0.0.1
[2606:4700:4700::1111]
[2606:4700:4700::1001]
1.1.1.2
1.0.0.2
[2606:4700:4700::1112]
[2606:4700:4700::1002]
1.1.1.3
1.0.0.3
[2606:4700:4700::1113]
[2606:4700:4700::1003]