常見網絡連接狀態指示器 (NCSI) 及強制門戶 (Captive Portal) 認證地址

常見網絡連接狀態指示器 (NCSI) 檢測用網絡地址

Windows:
- Edge:
  - http(s)://edge.microsoft.com/captiveportal/generate_204 HTTP連接檢測, 有效值為204
- 10-11:
  - http://www.msftconnecttest.com/connecttest.txt HTTP下載檢測, 有效值為Microsoft Connect Test
  - http://ipv6.msftconnecttest.com/connecttest.txt HTTP下載檢測, 有效值為Microsoft Connect Test
  - dns.msftncsi.com DNS解析檢測, 有效值為131.107.255.255和fd3e:4f5a:5b81::1
- 7-8:
  - http://www.msftncsi.com/ncsi.txt HTTP下載檢測, 有效值為Microsoft NCSI
  - http://ipv6.msftncsi.com/ncsi.txt HTTP下載檢測, 有效值為Microsoft NCSI
  - dns.msftncsi.com DNS解析檢測, 有效值為131.107.255.255和fd3e:4f5a:5b81::1
Android:
- http(s)://www.gstatic.com/generate_204 HTTP連接檢測, 有效值為204
- http(s)://www.qualcomm.cn/generate_204 HTTP連接檢測, 有效值為204
MacOS & iOS:
- http(s)://captive.apple.com HTTP下載檢測, 有效值為<HTML><HEAD><TITLE>Success</TITLE></HEAD><BODY>Success</BODY></HTML>

DNS解析檢測: dig +short any <FQDN>
HTTP下載檢測: curl -sL -m10 <URL>
HTTP連接檢測: curl -sL -m10 -o/dev/null -w%{http_code} <URL>