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Editorial Team
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Asked: 2026-06-06T21:28:14+00:00

I recently added SSL functionality to my Rails app running on Heroku. I successfully

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I recently added SSL functionality to my Rails app running on Heroku. I successfully purchased and created a certificate for my domain and using a CNAME in GoDaddy, the WWW subdomain of my app works correctly when a user browses to http://www.myappname.com

The page loads without any warnings and the certificate works as is supposed to.

The CNAME looks something like this:
host: www
points to: myappnamefoobar-1234.herokussl.com

However when I simply go to the “naked” domain name – myappname.com, a certificate error comes up.

How do I configure the DNS settings in GoDaddy to make this work?

https://devcenter.heroku.com/articles/avoiding-naked-domains-dns-arecords

There is a whole article in Heroku’s docs about naked domains but I don’t see how this would apply to GoDaddy’s DNS manager.

I know that Heroku has some sort of IP based SSL that is paid but is there another way to accomplish this?

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1 Answer

  1. Editorial Team

    The trick is to use rack-rewrite:

    https://github.com/jtrupiano/rack-rewrite

    It allows Rails to do a redirect from mydomainname.com to http://www.mydomainname.com since Heroku doesn’t allow naked domains.

    You then use your DNS manager to point http://www.mydomain.com to Heroku’s SSL endpoint (paid, $20 per month).

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