Dang! Well now I know the limits of that free service, which apparently is not that much.

I'd be willing to pay for a more stable host - do you have any recommendations?

Is it a static site? Then bitballoon.

Dynamic? Heroku, AWS Elastic Beanstalk, DigitalOcean, AWS EC2, etc.

Thanks for the tip!

Got the site on an alternative server. Not the prettiest url but does work!

http://stenographer-arithmetic-82316.bitballoon.com/

BitBalloon founder here, cool site!

You can change the URL to something nicer from the UI - just click "Edit Name" and pick something like ulaxi.bitballoon.com :)