Please find below steps to forwarding…
- Login into godaddy.
- Go to “My account” select “Mange domain”.
- In domain settings see “Forwarding” section click on “Manage” under Domain.
- In Forwarding and Masking page “Add Forwarding”.
- Within “Add Forwarding” add domain name with http://www.my-domain.com with 301(Permanent).
- Please check the “Name servers” checkbox weather you need to update “Name servers” or not.
- It will take around 48 hours to propagate.