There is “local” Internet, it’s called LAN. There’s “dishwater.local” if someone (manufacturer included, though I’m pretty firmly against IoS devices) bothers t

There is “local” Internet, it’s called LAN. There’s “dishwater.local” if someone (manufacturer included, though I’m pretty firmly against IoS devices) bothers to set it up. Local nodes can do multicast/broadcast DNS and discover each other. You’ve probably seen it if you ever used a WiFi-connected printer on LAN.