What is UTM tracking Klaviyo?

It allows you to track email performance in Google Analytics.

UTM tracking is distinct URL parameters that help define where the visitor on a website has come from. It defines the source, medium, and campaign. Search for UTM builders, there are tons of free builders that you can just copy and paste them from. But make sure you define each parameter consistently for Google and other analytics.

You can add Google Analytics utm tracking data to your emails sent in Klayvio. This can be automated.