Manage CNAME records in

This document will guide you through the steps to create, modify and delete the CNAME record(s) necessary for implementing OneTag 2.0 in the hosting platform.


OneTag 2.0 is Criteo’s latest cross-device innovation protecting your reach of shoppers as well as facilitating ad relevance and ensuring accurate sales attribution.

To implement OneTag 2.0 it is necessary that you delegate Criteo a sub-domain by creating a CNAME record in your name-server/hosting platform. In a Domain Name System (DNS) context, a Canonical Name (often abbreviated CNAME) record is a name-server resource record that maps one domain name (an alias) to another domain name (the Canonical name) section 3.3.1 of RFC 1035.

Sub-domain delegation

Please create the following CNAME record(s) on your hosting platform:

Sub-domain to delegate CNAME/Points to

You should be able to achieve this by following the steps below or in the Support Center.

Create/update CNAME records

  1. Log in to your Domain Control Panel.
  2. Go to Domain Central.
  3. Click on the domain you want to edit.
  4. Click DNS.
  5. From Modify, select CNAME Records.
  6. Enter the following:
  7. Host: {{subdomain}}.
  8. Points to:
  9. Click Add. A confirmation message will be displayed.
  10. To modify a setting, select Edit or Remove from the Action dropdown menu next to the CNAME Alias.

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