This website generates music notes in random order. It is meant to help you learn the guitar fretboard following the method from this YouTube video by MusicTheoryForGuitar.
Before starting, make sure to watch the video to get all the required context.
Once you have mastered all the exercises, repeat #2 to #5 gradually increasing the metronome speed. When you are able to do #5 at 80 BPM you are DONE!