Hey Jerome, it's based on a pair by pair basis.
After getting feedback from the community we'll be updating everything and relaunching.
I understand it relies on pair by pair basis, but you need to indicate the limits on the swap page right before a trade enters the values he is trying to swap. I believe this was missing out at the time I checked out the swap page. I do hope that in the coming update you add such vital features, among other things suggested by other members. As of now, I see a message about updating in progress, which is a good sign.
There is nothing to indicate. He just put affiliate widgets from some exchanges, all on one page, and that's all. The update here can only be cosmetic, and maybe the addition of new referral widgets from other exchangers.