What are the correct pixel dimensions for an apple-touch-icon?

Question

I\'m not sure what the correct size should be.

Many sites seem to repeat that the apple-touch-icon should be 57x57 pixels but cite a broken link as their source.

Answer 1

The official size is 57x57. I would recommend using the exact size simply due to the fact that it takes less memory when loaded (unless Apple caches the scaled representation). With that said, Rex is right that any square size will work