Infographic: YouTube Ads Are Reportedly Viewable 91% of the Time

Research also states that being heard is almost as good as being seen

Google has new insights for the industry worried about viewability, one of the top concerns facing the digital marketing world this year. Google's latest report on the matter digs into what counts as a view when serving a video ad, and what it found was that 54 percent of promotional clips are viewable on phones, tablets and desktops.