IDAX was an exchange platform that lent some trading services for thousands of investors and shoppers. Despite the limitations it had with token listing and pricing, many users trusted in its and did a lot of transactions there. Some researchers even talked about it as an intuitive project that gave so much comfort to users. But that is all water under the bridge because this project is currently a big scam. Some traders lost all their Investments and assets when the page was taken as an external provider. After some arrangements, it was finally cancelled, and now there is not possible to get access to the page.
Users can still din the link for the page, but the will see how it is not possible to reach it. In some way, it is good because this help to reduce all risks that inexperience traders can face, even when their data might be involved. I researched this project through some official markets and saw how they provide limited information about it.
Most of the problems that users faced were with the transaction in Ethereum. They lost a good number of ETH tokens that were part of their investment and that digital money won't return because there are note ven proofs of that, more than comments from reliable sources.
So, in conclusion, I recommend users to keep away from its page, anyway. The access was finally reduced, but the risk will ever exist when a scam project like this is there on the web.