[jwbensley]

Its difficult for the "average user" (define as you please) to know what what path should look like though. Lots of ISPs will have private peerings to others ISPs/content providers/carriers etc. which aren't publically listed anywhere.

[mirimir]

I'm not suggesting that the (say) Firefox extension would show the path. It would just show whether the path included devices in whatever country. In this case, China. Users wouldn't need to know details. There are many sources of geolocation data that the extension could draw upon.