Well, perhaps my system is better than I thought. The site could not resolve anything until I turned JavaScript on (JS off is my normal default state)—it continued to poll and displayed nothing indefinitely (had to be terminated).

When I turned JS on it could not determine my machine type, got screen reso wrong and it provided incorrect location info (map and coordinates were wrong). Moreover the browser type was incorrect (but then I automatically randomize the browser type on each launch).