No, we are not affiliated with any other site and we are not familiar with the mention platform. To be honest, we are not sure how our sites are identical 
https://www.provablyfair.me/
https://www.bitcasinorank.com/
Both of this websites are using identical template or theme, and only a blind man could not see that.
I am not claiming that owners are same, I just asked a question, but menus, search box, footer and website structures are identical, it's easy to see this.
You are both using same Mercury Casino Affiliate WordPress Theme by space-themes:
https://space-themes.com/item/mercury/