BTW, why do you link shorteners instead of direct links to website?
The shortened link they used actually helps them track and be able to visits that have been made to their website over a period of time. This is not achievable with a direct link.
Much better if they used (utm_source) parameters to tell them where is the source of. their traffic. I think its a valid question.
Anyways, good luck it seems the site is really attractive and can compete with more established sports bookies like sportsbet.io. And if they are going to offer more attractive odds, they definitely it will be a plus for sports gamblers here.