Also, many publishers and advertisers often voiced their concerns to AdTech companies about a lack ofwel transparency into fees, and the accuracy of user data and reports. Real-time bidding also reduces wasted impressions and increases the transparency of the buying process within the digital advertising industry. OTT: Aan-the-top refers to https://erickutqld.bloguerosa.com/27695228/top-richtlijnen-van-a-b-testen