Tracking Subdomains Traffic in Google Analytics

Get rid of duplicate data when user moves from one sub-domain to another on your website:

Add your domain to the referral exclusion list by following these steps:
Admin -> Tracking Info -> Referral Exclusion List

Make sure to just add the root domain without the sub-domain or www. This will ensure that as users move between sub-domains, the session will be preserved and will not create a new session every time the user navigates between sub-domains.



If you want to show the domain for all of your sub-domains in GA rather than just path, follow the filter below. Use this filter:

If you want to only show the domain for a specific sub-domain then do the exact same filter above, except for the Hostname field enter (subdomain.yoursite.com) instead of (.*). Use this filter if you have been using Google Analytics to track your website for awhile and just added new sub-domains.



Is there a way to see historical data for the sub-domains?

Yes, you can see the data for a particular sub-domain by creating a segment. To create a segment for each sub-domain,
go to New Segment -> Advanced -> Conditions -> Hostname.

For example: Hostname may look like try.microsoft.com