"It’s important to test on every device you can get your hands on and make sure to test across a variety of screen sizes, OSes, makes and models. We’ve listed s

"It’s important to test on every device you can get your hands on and make sure to test across a variety of screen sizes, OSes, makes and models. We’ve listed six devices in the checklist as a good starting point." I sure don't see this list of six devices anywhere.