The website example.com has different Google Analytics tracking codes. One we installed in the agency UA-XXXXXXXX-1 and another one the webmaster installed UA-XXXXXXXX-3 property tag that monitors our traffic at the agency and one roll up property tag for all the 115 agencies UA-XXXXXXXX-15. ( for the main website www.example2.com)
I read installing multiple instances of the Google Analytics Tracking code on a single web page, especially different versions of the code, is not a supported implementation.
I don't have the script knowledge to know it this correct the way it is installed right now. I would appreciate your help who can read this script.