The short version:

* Glitch currently does not support adding new custom domains.

* Existing custom domains will continue to work in their current setting.

* If you remove your existing domains, they cannot be re-added.

* The feature is coming back, and we'll let you know when we have a schedule for that.

On March 1, 2023, Glitch creators reported that SSL certificates of newly added domains were not working (ie. https was not working). The third-party service we were using to provide this feature has been shut down and will remain so indefinitely. Until the Glitch team can rebuild this functionality, we will be temporarily removing the “Add Custom Domain” feature. 

We do not yet know the timeframe for restoring access to the Custom Domain feature, but will share when we do. Current users who have already added a custom domain in the past will still be able to use their customer domains, as this incident only impacted the new creation of SSL certificates. That being said, if you remove your domain from a Glitch app, you will not be able to re-add it.