bitgok.pro

Is my friend being scammed? My friend invested all his savings (500$) on a crypto currency exchange ([bitgok.pro](https://bitgok.pro)) (which there's 0 information online) because a friend of his told him he would get high returns. He told me he is swapping tether for bitcoin and ethereum or something like that (not familiar myself with how it works). He said he made 100 euros that same day, which sounds incredibly fishy to me (doesn't it mean that bitcoin whold have to increse its value by 20%?). He has now got a loan of more than 300 euros to "increase his fund because" because his friend told him that he'll win it big tonight. The so-called "friend" says she makes 5k a month investing in this and is a business partner of a fashion company. Anyways, all this doesn't sound right to me and I'm scared he is being scammed. Am I overthinking? Thanks for your time.