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
Found this: http://blog.cloudflare.com/zone-apex-naked-domain-root-domain-cname-supp
CloudFlare provides a whole bunch of other benefits as well. I've been using them for all of my Heroku apps and I'm quite pleased to be honest.
They provide a lot value for free from my experience with them thus far.