Good question.

Honestly I have never really been a regular user of that site so it is possible.

I think they use the api from many exchanges however with markets temp. suspended at cryptopia and c-patex is a pretty new exchange it may be.

fwiw (and I realize my opinion is certainly the minority) market cap is a kind of 'foggy' statistic to begin with.

Even when applied to macro economic things like stocks ect if Bezos sold all his stock at once it would certainly change the market !

Regardless I bet other ppl on here will have more information and chime in.
Thank you for bringing this to my attention also.