Element visibility event

Requirements

• utag v4.38 or later. For more information about updating the utag.js template, see our knowledge base article Best Practices for Updating to the Latest Version of utag.js.

How it works

A element visibility event tracks when a visitor sees a specific element on a page. When an element is visible to the visitor, the tracking call is triggered.

For more information about how to add an event listener, see Manage events.

Event triggers

Event triggers are the specific actions the event listener tracks.

The event default is the element visibility event trigger. You can set the following thresholds for this trigger:

• Percent Visible - The percentage of the element that needs to be visible for the event listener to trigger.
• Minimum Duration - The amount of time in seconds that the element needs to be visible for the event listener to trigger. The default is 0 seconds, which triggers the event listener immediately.

Element selector

The element selector specifies which element on a page you want to trigger the event listener. For more information, see Event element selector.

Trigger frequency

The trigger frequency determines how many times the event trigger will result in a tracking call. For more information, see Event triggers.

Event trigger variables

Event trigger variables are the values the event sends with the tracking call. The element visibility event has the following default event trigger variable:

Element Visible

Example

{
   "tealium_event"  : "element_visible",
   "percent_visible" : "100",
   "duration" : "5",
   "iq_event_id:" : "element_visibility_events_1"
}