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How to connect your IONOS subdomain to SystemeScale

πŸ“… Last updated: June 2026
⏱ 6 min read
βœ… All plans

On this page, you will learn how to add DNS records to IONOS to connect your subdomain.

You will be able to add your subdomain, such as subdomain.domain.com, to SystemeScale and use it as a custom subdomain in your sales funnels and blogs, which is essential for your branding.

What you will need:

  • A SystemeScale account
  • A subdomain purchased from IONOS
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Complete the first subdomain integration step first
Please follow the first step of the Integrating your subdomain in SystemeScale article before proceeding with this guide.
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Start with the subdomain integration guide
Add your subdomain to SystemeScale first, then return here to complete the IONOS DNS records.
Read Subdomain Guide β†’

Add your subdomain in SystemeScale first

After adding the subdomain in SystemeScale, you must access the DNS settings in your IONOS account.

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Each subdomain has unique CNAME records
Each domain or subdomain added to SystemeScale has unique CNAME records that must be added to your host's DNS settings.
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Example used in this guide
In this example, the subdomain example.sio-demo.com is being connected to SystemeScale. Your own CNAME values will be generated inside your SystemeScale account.

First, hover over your profile picture, click Settings, then go to Custom Domains and add your custom domain or subdomain.

First CNAME

Go to the DNS zone for your domain name, then click Add a record.

Select the CNAME type.

Enter example in the Hostname field, then enter d1dhtkx4dqbsxr.cloudfront.net. in the Points to field. Finally, click Save.

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If the first CNAME already exists
If a CNAME record with the name example already exists, edit its value to d1dhtkx4dqbsxr.cloudfront.net.

Second CNAME

Go to the DNS records for your domain.

Click Add a record and select CNAME as the type.

In the Hostname field, enter the text that appears before your domain name. In this example, use _8f075f876543bd986b86922aa1751168.example.

Then, enter _7c6e6856e9196a9e2a3c9565544b6db8.xlfgrmvvlj.acm-validations.aws. in the Points to field. Finally, click Save.

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Use your own generated CNAME records
The CNAME values above are examples. Each subdomain added to SystemeScale has its own CNAME records, so copy the exact records shown in your SystemeScale account.

Check your CNAME records

Once the two CNAMEs are correctly added to your host, you can check their status using DNS Checker.

To check your records, you must enter the full CNAME name, including your domain name, into the search bar.

You should see the same value you added next to a green checkmark. If not, the records have not been added correctly, and you need to check your DNS zone.

  • CNAME verification 01: verify the CloudFront CNAME record.
  • CNAME verification 02: verify the validation CNAME record.
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Verify both CNAME records
Check both the first CNAME and the second validation CNAME. Both should resolve correctly before you expect the subdomain connection to work.

Important notes

  • It can take up to 24–48 hours for DNS records to propagate completely.
  • Sometimes, your host may not be able to register a CNAME record due to a conflict with other existing DNS records. This usually happens when adding the first CNAME. If this occurs, contact your host support to determine if those existing records are necessary or if they can be safely deleted.
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Connecting the root domain instead?
Use the IONOS domain guide if you want to connect the main/root domain instead of a subdomain.
Read IONOS Domain Guide β†’
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