I already added a custom domain to my Heroku app and it works with www.domain.com
.
I need to know how to set up the domain without www
to resolve to the app, too.
Here are my current DNS settings:
$TTL 86400
@ IN SOA ns1.first-ns.de. postmaster.robot.first-ns.de. (
2013041500 ; serial
14400 ; refresh
1800 ; retry
604800 ; expire
86400 ) ; minimum
@ IN NS robotns3.second-ns.com.
@ IN NS robotns2.second-ns.de.
@ IN NS ns1.first-ns.de.
@ IN A 88.198.38.XXX
localhost IN A 127.0.0.1
mail IN A 88.198.38.XXX
ftp IN CNAME www
imap IN CNAME www
loopback IN CNAME localhost
pop IN CNAME www
relay IN CNAME www
smtp IN CNAME www
www IN CNAME appname.herokuapp.com.
@ IN MX 10 mail
What are the correct settings to use so that both example.com
and www.example.com
would point correctly to my Heroku app?
To point your apex/root/naked domain at a Heroku-hosted application, you'll need to use a DNS provider who supports CNAME-like records (often referred to as ALIAS or ANAME records). Currently Heroku recommends:
Whichever of those you choose, your record will look like the following:
Record: ALIAS
or ANAME
Name: empty or @
Target: example.com.herokudns.com.
That's all you need.
However, it's not good for SEO to have both the www version and non-www version resolve. One should point to the other as the canonical URL. How you decide to do that depends on if you're using HTTPS or not. And if you're not, you probably should be as Heroku now handles SSL certificates for you automatically and for free for all applications running on paid dynos.
If you're not using HTTPS, you can just set up a 301 Redirect record with most DNS providers pointing name www
to http://example.com
.
If you are using HTTPS, you'll most likely need to handle the redirection at the application level. If you want to know why, check out these short and long explanations but basically since your DNS provider or other URL forwarding service doesn't have, and shouldn't have, your SSL certificate and private key, they can't respond to HTTPS requests for your domain.
To handle the redirects at the application level, you'll need to:
heroku domains:add example.com
and heroku domains:add www.example.com
)www
pointing to www.example.com.herokudns.com.
SECURE_SSL_REDIRECT
to True
)Check out this post from DNSimple for more.
I am now using Google Apps (for Email) and Heroku as web server. I am using Google Apps 301 Permanent Redirect feature to redirect the naked domain to WWW.your_domain.com
You can find the step-by-step instructions here https://stackoverflow.com/a/20115583/1440255
You are not allowed to have a CNAME record for the domain, as the CNAME is an aliasing feature that covers all data types (regardless of whether the client looks for MX, NS or SOA records). CNAMEs also always refer to a new name, not an ip-address, so there are actually two errors in the single line
@ IN CNAME 88.198.38.XXX
Changing that CNAME to an A record should make it work, provided the ip-address you use is the correct one for your Heroku app.
The only correct way in DNS to make a simple domain.com
name work in the browser, is to point the domain to an IP-adress with an A record.
Source: Stackoverflow.com