You can look at how GA tracks users with a bit of googling:
https://developers.google.com/analytics/resources/concepts/g...
https://support.google.com/analytics/answer/2992042?hl=en
You can look at how GA tracks users with a bit of googling:
https://developers.google.com/analytics/resources/concepts/g...
https://support.google.com/analytics/answer/2992042?hl=en