3rd party cookies vs tracker.setDomains

The primary domain of my intranet site is


as it is a SharePoint intranet.

However I have a number of subdomains that are used for different webtools that I now also want to track for example.

search. company_name.com

If i use the same tacking code do I need to use the tracker.setDomains if I have also enabled 3rd party cookies ?

Or in other words if I have 3rd party cookies enabled are sub domains tracked correctly ?
Reason is that pushing code changes is a long a laborious process and I want to avoid that if possible.

Thanks you for your help


Anyone ?

to track well across subdomains, I recommend to call setCookieDomain and setDomains