Gandi.net and Heroku Domain Routing

Question

My .io domain works for www.domain.io, but not for the domain.io version. Below are each of the versions and revisions I have tried with ample time between each. I al

Answer 1

it seems that it best to redirect from the root domain to the one with www. Any other way?

Some DNS providers have an ALIAS record type which synthesizes the A records on the naked domain at request time. That and the URL record are the only options, since Heroku has essentially removed the use of fixed IP addresses with their current stack.

Also are the lines for gandi.net are necessary?

If you do not use Gandi for email or your blog, then you can remove all of the gandi lines. The MX records tell SMTP servers to use Gandi's mail exchanges to try to deliver mail, and the CNAME records are simply ways to access those Gandi services with your custom domain.