How does the mamba site determine the distance between users with an accuracy of 100 meters?

Question

Geolocation

How does the mamba site determine the distance between users with an accuracy of 100 meters if it does not use the browser API?
What service allows you to do this by IP address without using the browser API?

Answer 1

Subnets by IP address (+possibly in conjunction with mobile "agents" - through the collection of data about the network and geolocation using a mobile application).

Answer 2

Only GPS can give such accuracy, over IP, especially from mobile networks, such a result cannot be obtained