The online Rubik's Cube simulator is available in three different versions. The one you are using now is the simple version where you can see the cube unfolded. You can generate a random scramble for the Rubik's Cube, reset it to the solved position and apply the basic rotations. You can do a turn clicking on a rotation button. No drag and drop or swipe functions are working for this legacy version.

Switch to the 3D Rubik's Cube simulator if you want to manipulate the cube dragging it with your mouse and see it in three dimmensions.

The online Rubik's Cube solver knows all the rotations and has many available view modes. In addition you can calculate the solution of the Rubik's Cube if you can't solve it yourself.