Depending on the ad delivery method (server-side or client-side), discrepancies may arise in reporting. While client-side delivery generally supports seamless 3rd party tracking, some gaps may occur with server-side delivery due to potential limitations with certain 3rd party tracking vendors not fully supporting HTTP directives like the X-forwarded-for (XFF) header, to accurately identify multiple trackers coming from the same server IP address.
Note: Podcast ads are typically inserted using the server-side ad delivery.