It is definitely not real. It shows me variable and unbelievable results. I am using Dataone Broadband at 256 kbps. I've tested it 3 times. Each time, there were different results.
First time:
bits per second (bytes per second)
Download speed: 1,534,360 (191,795)
Upload speed: 144,093 (18,012)
Link
Second time:
bits per second (bytes per second)
Download speed: 478,875 (59,859)
Upload speed: 143,019 (17,877)
Link
Third time:
bits per second (bytes per second)
Download speed: 244,894 (30,612)
Upload speed: 144,042 (18,005)
Link
Now, real thing. Dataone provides 256/64 Kbps (Download/Upload). Download speed in first time was really unbelievable. Go and check it yourself.