Update: this has been resolved after a fix on Fly.io’s end. If you continue to have domain issues, contact us at support@glitch.com with the domain and project name.
We’re aware that custom domains are not working and the team is looking into it. In the meantime, glitch.me domains are still working. Follow the status page here for future updates: Glitch Status - Projects with custom domains are not loading
We apologize for the trouble!