You can view the Roll page here: Roll

Roll some dice by measuring the state of quantum particles inside a vacuum. When you click the button to roll, the website will ask for a random number between 0 and 255 from the ANU Quantum Number Generator. The number returned is a measurement of fluctuations of the electromagnetic field of the vacuum device - these fluctuations are the quantum particles within the vacuum, existing or not, depending on the instant the measurement is taken.

The number result of the measurement is then converted into a roll result. If you right-click on the page and select "Inspect", then click on the Console tab, you can view the raw number from the measurement.

A screenshot image of the Roll website page