Third Party Ad Tags in Ad Serving

What are Third-Party Ad Tags?

An advertiser places their creatives (Or Tags) in a third party server like Sizmek, Double click, Flashtalking to serve ads to users instead of serving it directly from their server. 

These third parties have better tracking, reporting, re-targeting and optimization capabilities. Also have reports like, path to conversion, reach & frequency reports. 

The same ad tag can be placed on multiple ad inventory space on different websites and apps. Hence easy to make creative changes in one place, do A/B tests, track Viewability and engagement.