DSX exchange is currently unavailable. There is a public disclaimer on the official web page of the platform that tells a little about some inner process that is being executed on the exchange. It involves all counterparts that hold the services of these networks but is just about those professional developers who work into the platform, and not users and traders. There is no clear information about the process. This project is up to date, and their platform has the copyrights established up to this year.
It is possible that in the following months the company or the team, in this case, release some news about the status of the project, but until now it is not possible to access the windows for trading. In the case of new traders who never heard of this service before, it was about a type of exchange that provided competitive outcomes to execute good sales following some trading orders, and it was also a rewarding option considering the good balance of fees that was established.
Anyway, it does not work at the moment. It is better to wait for it, but as a piece of advice, I recommend users not to try to use a VPN to unlock access to the site since you might result affected by the policies and terms of the platform.
NOTE: It is not entirely closed, but the access is not granted. No official news has been released, and it is not content on social media.