|_UTMZ||1st/Persistent||Analytics||Extracts the following information- where the visitor came from,
what search engine they used, what link they clicked on, what
keyword they used and where in the world they accessed a website.
|_UTMA||1st/Persistent||Analytics||Keeps track of the number of times a visitor has been to the site when their first visit and last visits were.|
|_UTMC||1st/Persistent||Analytics||Works with UTMB_ to determine how long the visitor spends on the site.|
|_UTMB||1st/Persistent||Analytics||Works with UTMC_ to determine how long the visitor spends on the site.|