If you registered your domain in godaddy.com, you can set up own domain mapping following the steps hereafter:

Step 1. Log into your GoDaddy account, click "Domains" to show your domains. Then click the domain name that you want to set the own domain mapping. You will see a "Domain Manager" page as hereafter. Then click the "Total DNS control and MX record" link.

Step 2. If you want to set up domain mapping, such as, use http://www.mydomain.com for your Podbean podcast site. In "CNAMES(Aliases)" section, you click the "Edit" button at the right side of the "www" record line.

Step 3. Edit the "CNAME" record to map "www" to your podbean site, e.g. http://username.podbean.com. Set "alias name" as "www", host name as "username.podbean.com"

If you want to set a domain map, such as, http://podcast.mydomain.com map to your Podbean podcast site, you then need to add a CNAME record by clicking "Add new CNAME record" button.

In the "create new CNAME" page, enter the subdomain that you want to use. Such as, if you want to use http://podcast.mydomain.com map to your Podbean podcast site http://username.podbean.com , set "alias name" as "podcast", host name as "username.podbean.com"

The quickest way to log into your Podbean account dashboard is to click the “Publish a podcast” tab on Podbean.com home page.

You can follow the steps hereafter to move your podcast to Podbean:
Step 1.  Select a Podbean plan that fit for you need and sign up a Podbean account. 
Step 2.  Import your current podcast posts into your Podbean account. See our FAQ about how to import at here.
Step 3.  Upload your audios and videos into your Podbean account and edit the imported posts to link to the respective audios and videos.
Step 4.  Make announcement in your current podcast site and new episodes about your podcast migration.  If possible, keep this announcement for a month so,  this probably will get most of current active users informed.  Please notice that your new Podbean podcast feed url is http://yourusername.podbean.com/feed/ .
Step 5. If your current podcast hosting service support "new feed" tag and 302 http redirection.  Please check our FAQ about how to move feed in iTunes at here.