A stub tag in source code of a webpage allows for collection of numerous data elements according to tracking tags of various data receiver parties and for distribution of the collected data elements to those parties. The stub tag references a remotely cached script that enables a user device, e.g. a computer running a web browser, to retrieve a tag code for collecting the data elements. The tag code is constructed according to data collection settings, data distribution settings, data receiver settings, and/or user privacy settings. The tag code results in a single variable, common to all data receiver parties, for each data element. The common variable is transmitted to data receivers through the user device or through a server-to-server API.