Welcome to Indonesia Internet provider.
I hope, "Duelbits" have some solution like "Stake" while they have mirror link for people who are getting blocked by internet provider. Using VPN for my side, is really slowly the process of the internet.
Example, opening a slot or watching live games.
Mirror sites are a good option, especially for those users who don't want or cannot use VPN. I think the Duelbits team could easily create mirror sites if they detect that many users have problems accessing the site for one reason or another. Although it's worth noting that if ISPs start to block the main casino domain, they might eventually block the mirror sites as well.