http://speed.cloudflare.com is a bit harder to argue with though.
Fast is a one click solution to finding out your download speed from Netflix.
Latency doesn't matter, nor does upload.
Just tap ‘More Info’ to show them
That's why speedtest.net is a great purchase for Accenture. Of course Cloudflare's speed test is accurate: it's a test of how fast your connection is to their network. No more, no less. That their network doesn't have the same PoPs means it'll have different numbers than Ookla's test, your ISPs advertised numbers, Netflix's test, and any other speed test. But for people that don't see the Internet as a pile of different interconnected networks, the conclusion that a particular test is inaccurate is a win for Accenture.