How do devices check internet connectivity?

jesus767 il y a 4 ans

When you lose internet access (while still connected to your LAN) , windows, android, and iOS (and maybe macOS) all give some indication that your network lacks internet access (e.g. "Connected, No Internet" on android iirc). So they must be periodically checking to see if your device has internet access.

I'm guessing they do it by pinging some IP address or another. But how can I know for certain what exactly they are doing and which address (or domain) they are pinging if that is what they're doing?

https://192168o1.com.br/
https://19216801login.com.br/
https://logintplink.com.br/

Modifié il y a 4 ans, le mardi 24 novembre 2020 à 10:07

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