443f18ee_ndard_Metrics___Analytics_Talk__WAA_Definition
[Compliant] N/a [Term] Original Referrer [GA Definition] N/a This metric is not available in GA. Note: See information about Referrer above. [WAA Definition] 
The original referrer is the first referrer in a visitor’s first session, whether internal, external or null.
Google Analytics Compliance with WAA Standard Metrics - Analytics Talk
WAA Definition