The classic analytics.js snippetThe newer, more recent gtag.js snippetThe correct version to use depends on how GA has been implemented on the site:Via analytics.js library (hardcoded)Via gtag.js (hardcoded)Via GTM (using a Tag manager)In this article, we’ll dive into the best practice implementation of hardcoding the Optimize snippet onsite, and how to approach this depending on your setup”.CRO Best Practice – Implementing Google OptimizeMerkle BlogYou can use Google Optimize testing tool to offer a great website experience to your visitors.... [...]