nourzaon Stack Overflow • Recommends
On “How to point GoDaddy subdomain to Heroku app?”
To connect your heroku hosting to godaddy,
You have to open your godaddy account and in the DNS Management page add in the cname the host: www and in the point to: your heroku url
And in the heroku page in the settings add three domains:
1 *.xyz.com
2: xyz.com
3. www.xyz.com
This should work :) Check this video link to this video