Migrating your IP address
If you have domains pointing to an incorrect IP address, then your online store will be inaccessible to your customers. Check your store's domains settings to make sure that the status of each of your domains is shown as Connected or Setup in progress.
For each domain that has a different status, you need to make some adjustments to your domain provider's settings to point to Shopify's IP address,
126.96.36.199, and to
shops.myshopify.com for any subdomains.
Why you need to do this
If you don't update your domain's DNS settings for each of your subdomains and root domain, then your customers won't be able to access your store. Your domain provider can't update IP addresses automatically.
Depending on your familiarity with domains, you can do either of the following:
Get help from your domain provider
To get help making the changes, you should contact your domain provider and ask them to make these changes:
Required: Make sure that the A record of your root domain points to Shopify's IP address:
Make the DNS changes yourself
Log in to your domain account with your third-party provider.
If you need to retrieve your login credentials, then try filtering your email for your domain provider's name, and look at the oldest emails. They likely would have emailed login credentials to you when you purchased your domain.
Access your domain’s DNS records.
In the A record field, enter Shopify's IP address:
Create an ALIAS or CNAME record that points your root subdomains to
Save your credentials.