Custom domains can be setup for Guides for the account or for individual channels.
You can setup Guides on the top level domain (example: company.com) or as a subdomain (example: guides.company.com).
To setup a custom domain, you will need:
Creating a Custom Domain For Your Account
When you setup a custom domain for your account, users will be able to access all the guides and channels they have access to at that unique URL. For this reason, an account can only have one custom domain. However, you can create additional custom domains for any channels.
Creating Custom Domains For Channels
If you'd only like to publish a single channel - so users do not have the option of navigating to other channels they may have access to, you should publish a custom domain name for a channel.
Channels have the same permissions on custom domains as they do within the Guides application. So channels that are public will be available on the custom domain without the need for authentication (login and password). If you do not have public channels, or you are publishing a private channel on a custom domain, when unauthenticated users arrive on that page, they will be required to enter a user name and password to access the channel(s) they have access to.
Setting up your custom domain is simple and involves two steps: