This is www.testufo.com, the popular TestUFO display motion tests created by Blur Busters.
For peer reviewed research including TestUFO, see Area 51 Display Science, Research & Engineering.
Also, see TestUFO Discussion Forums and read below for news and articles about TestUFO:
Simulated Variable Refresh Rate on any monitor without G-SYNC or FreeSync
View an animation of variable refresh rates on your display, even if you don't have G-SYNC or...
Read more