https://i.ytimg.com/generate_204
https://connectivitycheck.platform.hicloud.com/generate_204
https://connectivitycheck.platform.hihonorcloud.com/generate_204
http://wifi.vivo.com.cn/generate_204
http://connectivitycheck.cbg-app.huawei.com/generate_204
http://connect.rom.miui.com/generate_204
https://www.google.com/gen_204
https://www.google.com/generate_204
https://www.v2ex.com/generate_204
http://www.qualcomm.cn/generate_204
http://www.gstatic.com/generate_204
http://clients3.google.com/generate_204
http://www.apple.com/library/test/success
http://connectivitycheck.android.com/generate_204
http://connectivitycheck.gstatic.com/generate_204
http://fireoscaptiveportal.com/generate_204
http://freetimecaptiveportal.com/generate_204
http://gateway.zscalerthree.net/generate_204
http://gateway.zscloud.net/generate_204
http://g.cn/generate_204
http://play.googleapis.com/generate_204
http://speedtest-global.spatialbuzz.net/generate_204
http://tabletcaptiveportal.com/generate_204
http://www.google.cn/generate_204
http://www.msftncsi.com/ncsi.txt
http://captive.roku.com/ok
http://www.appleiphonecell.com
http://captive.apple.com
http://detectportal.firefox.com/success.txt
http://www.msftconnecttest.com/connecttest.txt
http://www.youtube.com/generate_204
https://translate.google.cn/generate_204
