Official Shopify dns page:
http://docs.shopify.com/manual/settings/domains/outside-provider
https://docs.shopify.com/manual/settings/domains/third-party-domains/popular-providers/dreamhost
DNS Settings:
| DOMAIN | CONFIGURATION |
|---|---|
| TWO LEVELS (E.G. MYWEBSITE.COM) |
point A-record (IP address) to 204.93.213.45 |
| THREE OR MORE LEVELS (E.G. WWW.MYWEBSITE.COM OR BLOG.MYWEBSITE.COM) |
CName “www.YourStoreName.com” |
“www.YourStoreName.com” is the name of your shopify store, you get this from their side.
On the Dreamhost Side:
Go to your Manage Domains Page and make sure the domain is DNS only. If you have hosting on the domain, use the “remove” button under the “web hosting” column:
Once the domain is dns only, click the dns link under your domain name and add these records:
Custom DNS Options:
Name: subdomain, leave blank for naked/root domain
Type: type of dns record, such as A record, Cname, TXT
Value: Target
Settings Needed for this setup:
Name: leave blank for naked/root domain
Type: A
Value: 204.93.213.45
Name: www
Type: CName
Value: www.YourStoreName.com
Note: This guide has been created to help simplify setting your domain up. The service you are pointing your domain to, DNS can/might has changed. Always check the hosts official page to verify the records.