GA: Unique visitors of two websites - google-analytics

I have two websites (different domains) and I want to know how many unique users are visiting both sites. The best result would be:
number of unique visitors
on website A
on website B
on website A and B
The websites have their own GA tracking ID. Do I have to implement the cross domain tracking?

Yes cross domain tracking is made for exactly the same purpose.
https://support.google.com/analytics/answer/1034342?hl=en

Related

Google Analytics: How can I see the referral of a referral?

We have two sites: site A and site B. We manage both.
Site A allows the user to prepare an order which then gets POSTed to site B via a form.
When looking at the GA statistics for site B, I want to be able to see the referral source to site A instead of seeing site A as the referral. How can this be achieved?
Is adding site A to the Referral Exclusion list of site B sufficient? Or do I need to do more than that?
If these are two different GA properties then adding to the referral exclusion list will simply mean that the referring domain appears as direct traffic.
To get the campaign info from the referring domain you would need to set up cross-domain tracking between the two domains.
As an alternative you could store the original traffic source e.g. in a cookie and append it via campaign parameters to all links that go to your other domain. However this would be a lot of work and quite error prone.

How can I test/verify if users are tracked across subdomains n Google Analytics?

I have my UA setup across three sites www.aerserv.com, platform.aerserv.com, and support.aerserv.com. I want to be sure I'm tracking users across the domains properly so the analytics don't see each visit from one user as a "new user".
Is there a way to verify that I've setup my tracking correctly and Google isn't mis counting visitors?
Subdomain tracking is done out of the box in GA, and the only thing you need to make sure is that the cookie domain setting is set to 'auto', and that the referral exclusion list includes the main domain. Once you have those set, and if all pages across all applicable subdomains are tagged, then you should not have any issues. If you need to check, then you can look at the client ID (cid) for each pageview hit from one subdomain to the next. The client ID should be the same.

Track multiple subdomains + tld Google Analytics

** tld = top level domain
I am wanting to track my main domain and all of its subdomains (around 180) in Google Analytics.
I am wondering if it would be better to create 180+ profiles for each subdomain or would it be better to track them all through one profile?
The reason I ask is:
I need to easily access subdomain stats + the total amount of unique visitors PER subdomain
Want to see the total amount of unique visitors (including subdomains and tld)
Any ideas?
usually the best practice with multiple subdomains is really to create a separate profile for each subdomain within a central UA.
Unfortunatelly, there is still a limit of 50 profiles, but if you have such an necessity, you can make contact with any of Google´s Partners and they can submit a request to increase your limit to 200.
Another solution, not as optimal as having many profiles, would be to create virtual pageviews that could id the subdomain and then apply advanced filters to segment the data.
Here at dp6 we are a certified parter, if you would like to contact us, please feel free to do so.

Google Analytics - site with 2 domains, how to track each domain individually?

I have a website with 2 domains. I am trying to track the domains separately. I have both domains inside the same GA account - each domain has a filter applied to it to exclude the other's domain (both with and without the www). It looks like the domains are still being tracked together. How would I go about separating these 2 for different results?
Thanks!
What you're doing now is sending all the traffic to one account (say, UA-XXXX-1), and then using filters to separate them out. This is an imperfect solution, since filters have odd session-related quirks that make them less than ideal for tracking completely separate domains.
To completely separate the results, you need to create separate new web properties within your Google Analytics accounts , so that instead of tracking the second domain on UA-XXXX-1 and filtering, to send the data to UA-XXXX-2. It will roll up in the same area of your analytics account, but it will totally separate and segment the data.
You can read more about the organizational concepts here at this excellent Google Analytics Help Center walkthrough.
To set this up, you'll setup a new profile within the account and select "Add a profile for a new domain" as your option. There's a detailed walk through here.

Multi-domain setup on Google Analytics

We have a dozen or so sites, as well as the occasional subdomains so:
example.com
example.co.uk
us.example.com
etc
We have been using separate GA codes for each site. This works fine, but it means that adding a new site means getting a new code and we can't tell overall stats (e.g. how many people have visited all sites etc). If we went the one code route and set up separate profiles for each domain/subdomain:
1) Should we use _setDomainName("none") or _setDomainName("www.example.com") and _setDomainName("www.example.co.uk") etc
2) Will each domain profile treat the other domains as separate (e.g. will we tell on example.co.uk how many people visited from example.com and completed goals etc)
3) Are there any disadvantages to this method.
This post from the Google Analytics blog details how to set up a GA account for each site, and an overall 'rollup' account which sits on top - this will let you give separate GA admin control for each site, where you can dig deep into each site's account, and show cross-site referrals, and the rollup will give overall numbers (but I don't think it's going to report on unique visitors across the collection of sites).
http://analytics.blogspot.com/2009/09/advanced-structure-your-account-with.html

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