I think this might be a useful conversation to help mitigate any issue which may occur for us start-ups when the main cluster is down and the App is unresponsive.
I am sure there would be some dns issues to solve for redirection, but lets say you have your own domain and you want to push the user to https://maintenance.example.com at times when Bubble.is is down for more than x minutes.
I’ve seen some go about it the other way around: point the main domain to a landing page that is not the Bubble app (like WordPress or something), which would avoid being impacted by an app outage. Then point something like app.domain.com to the actual Bubble app.
I’m not sure if that’s possible to achieve once you’ve setup a domain already though.