What the pin means
The map places a pin where location records agree: country, region, and usually a city. A circle shows that the spot is an area. It is the network's registered area, not a door number.
Your IP or another IP
The page opens on your own IP address. Paste another public address for an IP address lookup. Private addresses such as 192.168.x.x have no public map location.
My IP and location together
Start by reading the address, then open the map for my IP and location. If a VPN is connected, the pin is the VPN server, because that is the address websites see.