Redirect example.com to www.example.com using Heroku (rails) and Cloudflare

Question

How would one setup a redirect from example.com to www.example.com using Heroku and Cloudflare?

Answer 1

It's not something that you can do at CloudFlare since they now host the DNS for your domain and don't support redirects so it's something you'd have to do at the application level.

http://support.cloudflare.com/discussions/questions/259-redirect-to-www

Answer 2

One free way to do it is to use the Naked Domain Redirect from wwwizer.com. You just make an A record for example.com to 174.129.25.170 (you can do that from Cloudflare). wwwizer will then redirect the request to www.example.com. It's probably the easiest way that I know how to do it.