Learn how the Tealium Universal tag (`utag.js`) and vendor library files are loaded in the page.
The Code Center is where you get the code to add the Universal Tag (utag.js) to your website.
This article explains how to use utag.sync.js to implement A/B testing and multivariate tags.
This guide shows the configuration and workflow for self-hosting the utag.js files.
This article describes how to improve performance when loading the universal tag from Chinese networks.