Windows has http://msftconnecttest•com Android and ChromeOS have http://connectivitycheck•gstatic•com Every major platform is covered by captive portal checks. Your average user doesn't have to work out why their internet connection isn't working, or get confused by HTTPS errors. They can just open their email.

Twitter / X डाउन था — करीब डेढ़ घंटे बाद फिर चालू हुआ। #TwitterDown #XPlatform #SocialMediaOutage #ConnectivityCheck

🌐 7 Linux Commands to Check Network Connectivity 🐧🔍 #LinuxNetworking #NetworkTools #CyberSecurity #SysAdmin #LinuxTips #EthicalHacking #InfoSec #Ping #Traceroute #TerminalTools #ConnectivityCheck #EducationOnly

connectivitycheck. gstatic. comとかwww. msftconnecttest. comあたりをこっそり使ってしまうのが当たりさわりないのかな…

Hey @airtelindia and @reliancejio, I'm eager to know if #5G has reached my area( Dumariya,Pincode-824206). Can you please check and provide details on the coverage? 📶🌐 #ConnectivityCheck #TechUpdate

See you at Lumbini Park this weekend!  #landtmetro #hyderabadmetro #mycitymymetromypride #connectivitycheck #lakdikapul #lazerlightshow #lumbinipark #weekendvibes #weekendtime

My iPad keeps pinging http://connectivitycheck,gstatic,com/generate_204. Looks like it may be the Twitter App (the outbound request has a user-agent string of "Twitter/8.27.1 CFNetwork/1128.0.1 Darwin/19.6.0"). I also don't have the app itself opened; background process I guess.

Hat jemand einen kreativen Vorschlag, wie ich ins WLAN komme? 😅 Nach dem connectivitycheck ist Schluss #kreativesMA

Plan to use the Microsoft Network Assessment Tool for #Skype4B or #MicrosoftTeams ? You should take a look at the findings of @randychapman. I really like the /connectivitycheck option lynciverse.blogspot.de/2017/…

New #Skype4B network tool is built to query #MSTeams FQDNs for /connectivitycheck param. If DNS recursion to the domains is missing...you get failure. Worse, the domains queried are listed as required for Teams under O365 support page, and not Skype4B... So. Frustrating.