Averages are not particularly interesting. CDFs or violin graphs are since hundreds of requests to load a site can turn your 99th percentile into what the user actually experiences.
Edit: I just noticed that clicking on it shows box plots. Good enough!
Thanks for this tool. It was extremely helpful in trying to find the best locations for data-centers across the world. Who knew, that the presence in New York, London, and Singapore alone is enough to be within 100ms reach for 80% of the world's population.