Custom root domain on Heroku

Question

I have a domain, example.com, that I want to use for my rails-app that resides at example.herokuapp.com and I\'m pretty confused how to go about to do this.

Heroku says

Answer 1

If you look at DNS records specification you'll find no such record as ANAME.

The best way to solve this problem is: Make CNAME entry for www subdomain to your heroku app, and CNAME record for root domain to www subdomain.

• www.domain.com. 3600 IN CNAME app.herokuapp.com.
• @ 3600 IN CNAME www.domain.com.

P.S. It works, and do not make you waste money for mystic DNS records