Sites like that (without flashy Street View pictures bound to be wrong anyways) have been around for a very long time, many are provided by VPN providers to let their customers check how good they are hidden. It simply showed Amsterdam for me, which is my current VPN-Server, so no surprises there.
What I mostly use to check such things <a href="https:&#x2F;&#x2F;ipleak.net&#x2F;" rel="nofollow">https:&#x2F;&#x2F;ipleak.net&#x2F;</a><p>What he does is only getting the location information and simply cross-referencing it with Google Street View &#x2F; Google Maps Data. That being said: It&#x27;s an art installation <a href="http:&#x2F;&#x2F;bengrosser.com&#x2F;projects&#x2F;tracing-you&#x2F;" rel="nofollow">http:&#x2F;&#x2F;bengrosser.com&#x2F;projects&#x2F;tracing-you&#x2F;</a> to provoke questions about privacy in a more closely connected world than ever. Noble idea.<p>&quot;First it looks up the IP address using ipinfo to obtain geolocation. This is represented as a latitude&#x2F;longitude pair (e.g. 48.8631831,2.3629368) that identifies a precise location on the earth. The latitude&#x2F;longitude is sent to Google, where it queries the Street View, Static Maps, and Javascript Maps data services.&quot;<p>Not too impressive though.