There have been many cases of dead Exchanges and rebranding of Exchanges, these are quite very much different from each other. Many people misunderstand rebranding and total closure. In the case of CapytalDash, it was re-branded and no longer available as CapytalDash but as DLTify.
CapytalDash is a centralized cryptocurrency Exchange established in July, 2016, with headquarters in Estonia. It has its own native token CAPYTALDASH, CRD, which is currently tradeable on Uniswap and SushiSwap. However, CapytalDash happens to be closed and no longer an Exchange to trade on because it has been re-branded. Although I have not been able to trade on its present Exchange it was re-branded to but I believe it will serve better than it used to. In conclusion, I advise you to make your researches on DLTify before trading there.