By default your Yozio SuperLinks will have a domain like
http://r.yoz.io. Rather than using this default domain you may set up a custom domain, ie
http://r.rivendell.com. If any of your use cases involve displaying your Yozio SuperLink URLs to users, setting up a custom domain which reflects your brand can help improve user click-through-rate.
Once you've set up your Yozio SuperLink custom domain you will also be able to configure a link alias (link ending) for any one of your Yozio SuperLinks.
Go here for details on how to set up a custom domain.