Well, that is the only way to go for those DEXs developers and users to take a look forward to decentralised front end solutions. It kind of limits the potency of decentralized finance or exchange if those platforms are still requiring centralized DNS/domain service.
I believe the thriving of the decentralized front end has been talked about in this board, but it really worth taking a look at platforms like Siacoin's Homescreen[1] or other service, which may offer the solutions.
[1]
https://support.skynetlabs.com/key-concepts/homescreen