When you create your Mighty Network, you have the opportunity to customize the mn.co subdomain that gets automatically created with your new community. Your subdomain will be the way that people can access your Mighty Network on the web.
How to Update Your Subdomain
To change the subdomain for your Mighty Network, just go to Network Settings > General Settings and scroll down until you see Domain. From there, select "Your Mighty Subdomain" to change the subdomain for your Mighty Network.
Click on "Edit Subdomain" on the next screen to change the subdomain that people use to access your Mighty Network on the web.
One important note: When you change the subdomain for your Mighty Network, this will cause any saved links or bookmarks that are already out there to no longer work. We recommend only updating your subdomain once while you are getting things set up, and using a custom domain if you want your old links to continue working.