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URL Ending: ?_ga= and a number

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# 1
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Hi there,


I was making some browsing tests and came across the following string...
Does anyone know what is the dynamic string after the question mark?
1 Expert replyverified_user
Marked as Best Answer.
Accepted by topic author Ricardo P
December 2016

URL Ending: ?_ga= and a number

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# 2
Rising Star

Hi Ricardo,


You came across cross domain tracking.  The default behavior is to place the client id as the _ga parameter.  When the receiving site is properly configured the site will use the CID and the sessions can be kept together.





Theo Bennett

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URL Ending: ?_ga= and a number

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# 3
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Thanks a lot!