Devices and Operating Systems will test Internet Access by see if your device can reach an web address.

Below is a list of the URL used by Devices or Operating System.

If you need to trigger a captive portal response, go to: http://neverssl.com, notice the HTTP instead of the more common HTTPS url.

Apple / iOS / macOS

• http://captive.apple.com/hotspot-detect.html
• http://captive.apple.com/
• http://www.apple.com/
• http://www.appleiphonecell.com/
• http://www.airport.us/
• http://www.ibook.info/
• http://www.itools.info/
• http://www.thinkdifferent.us/

Google / Android

• http://clients3.google.com/generate_204
• http://clients3.google.com
• http://clients4.google.com
• http://android.clients.google.com
• http://connectivitycheck.android.com/generate_204
• http://connectivitycheck.gstatic.com/generate_204
• http://www.gstatic.com
• http://www.google.com

Windows

• http://www.msftconnecttest.com/connecttest.txt
• http://www.msftncsi.com/ncsi.txt
• http://edge-http.microsoft.com/captiveportal/generate_204

Amazon Devices

• http://spectrum.s3.amazonaws.com/kindle-wifi/wifistub.html

Linux

• http://nmcheck.gnome.org/check_network_status.txt

Other

• Mozilla Firefox: http://detectportal.firefox.com/canonical.html
• http://cloudflareportal.com