Question

(tried on Server fault, so going to try here)

Hi I recently setup my octopress blog at http://davidmjohnson.me. This domain works fine, but when I try http://www.davidmjohnson.me I get a “heroku no app found.” Why is the www not working. Would really appreciate an explanation. I bought my domain name at dnsimple. Do I need to add a redirect from “http://www.dav…” to just “http://dav…” ?

Thanks

Answer 1

I’m guessing you need to configure this domain (and any subdomain) in the heroku CLI application (equiv. of ssh-ing into the machine and changing the nginx/apache location/virtualhost configuration).

I see they have an entry about this in their reference:
https://devcenter.heroku.com/articles/custom-domains

To elaborate a bit from the documentation:

Subdomains ( http://www.mydomain.com)

For each subdomain you want to setup configure your DNS provider using
a CNAME record pointing the subdomain to the applicable Heroku
hostname.

If the app is on Cedar, then CNAME the subdomain to myapp.herokuapp.com
If Bamboo, then myapp.heroku.com

In DNSimple a CNAME
record entry for a Cedar app would look like:

You can confirm that your DNS is configured correctly with the host
command:
$ host http://www.example.com

http://www.example.com is an alias for myapp.herokuapp.com.

myapp.herokuapp.com is an alias for ar.herokuapp.com.

ar.herokuapp.com is an alias for argon-stack-1879049447.us-east-1.elb.amazonaws.com.

argon-stack-1879049447.us-east-1.elb.amazonaws.com has address 107.20.157.144

…