I haven't logged into the site in awhile, but just now I did and Chrome alerted me that this site address was in a data breach and suggested I change my password.
Similar to that error message but specifically had this web address on it. Plus, I don't store any passwords in my browser so unless google intercepts every password I type and sends it back to them, it flagged the address not my credentials. So no, not some site some where. Here. It specifically stated here. Also, my password on this site is unique to this site only.