Writers can keep a Substack subdomain or handle indefinitely so long as their publication or profile remains active.
Can a Substack subdomain or handle be given to someone else?
If a publication or a profile is inactive for a significant period of time, we may ask the publisher for permission to reassign the subdomain or handle to someone requesting to use it.
We may reassign a subdomain or handle at any time at our discretion if we believe that its use poses a security risk to our platform, employees, or users.
Please note that we may decide to reassign a subdomain or handle without a holder’s explicit permission if we believe the holder is exploiting the subdomain with no intention to become an active platform participant or publisher.
How can I keep my Substack subdomain or handle?
In order to keep any subdomain or handle, activity on your publication should be authentic. We reserve the right to use our discretion when evaluating whether content has been published for the sole purpose of domain squatting.
Note: If you'd like to request a Substack subdomain or handle that's been claimed by another user, you can do so here.