This website is a useful resource, but it has some limitations. The algorithm used does not take into account the frequency response of the human ear. If a track contains a lot of very deep bass, it's possible for it to have a low DR score but still sound like it has a high dynamic range. The measurement can also be fooled by surface noise and filtering when measuring vinyl:

https://wiki.hydrogenaud.io/index.php?title=Myths_(Vinyl)#Ef...