How to change your landing page domain
You can change the domain that your landing pages will be visible under by going to your Account Settings and editing the Account Domain.
The new name should only contain letters, numbers and dashes, any other characters will be automatically removed. Every domain name needs to be unique, so if another user is currently using this name, you won't be able to choose it.
Please keep in mind that if you change your domain and you already have created landing pages before, their URL links will change as well when they do not longer exist under the old domain. That is why do not forget to update where you have already placed old links.
Keep in mind that if you change your domain and you already have published landing pages, their URL will change and the old one won't work anymore.