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When it comes to viewability measurement, the most common question we get from clients is, “What percent of my ads are in-view?” Immediately thereafter they want to know, “How does this compare to a typical campaign?” While the answer to the second question has always been (and continues to be), “There’s no such thing as a typical campaign!” we have now amassed a significant amount of data to help confirm this point and address some of the question marks swirling in the minds of advertisers, agencies and publishers. Today the Interactive Advertising Bureau (IAB) is hosting a briefing on viewability, and we wanted to share some of these results with you in time for that meeting.

The Topline Results: 54% of Display Ads are Not Seen

comScore recently conducted an analysis of thousands of campaigns spanning a mix of global advertisers who ran their ads across a variety of publisher sites and ad networks/exchanges from May 2012 through February 2013. The key finding, which was first reported in the Wall Street Journal (subscription required), was that more than half of display ads – 54 percent, to be precise – do not have the opportunity to be seen by a consumer. This in-view rate is actually significantly lower than our initialvCE Charter Study research from January 2012.


While the difference appears stark at first glance, it is actually not terribly surprising given that the vCE Charter Study involved a small sample of 18 campaigns that were delivered on mostly premium sites. At the time of the initial study, we knew that the viewability results represented somewhat of a best-case scenario. With thousands of vCE campaigns now under our belt, we are getting a much clearer view of where the reality may lie. It also underscores the need for consistent and robust research to help us better understand the dynamics of viewability and viewability measurement across the web.

Another common question from clients is how these benchmarks account for the percentage of display ads whose viewability cannot be directly measured. First, it’s important to note that not every ad that runs online can be directly measured for viewability, and the Media Rating Council (MRC) recently issued an updated guide to accredited viewability vendors which found that all measurement methods have select areas where viewability can’t be directly assessed. The viewability rates comScore has presented here and in vCE are calculated on impressions where measurement can be directly assessed.  The viewability rates for impressions where measurement can’t be directly assessed are projected according to the directly measured ads specific to that placement and campaign in the vCE Audience module.  Thus, viewability rates disclosed here do represent the viewability of the placements measured and are not negatively impacted by any ads where viewability could not be directly measured.

Premium Publishers Boast Higher Average In-View Rates than Ad Networks/Exchanges
Not surprisingly, in-view rates can vary greatly depending on where the ads run. Our clients increasingly want to understand how in-view rates differ between ad networks/exchanges and premium sites.

While the definition of an ad network or exchange is well understood, there is no industry definition for premium sites. For the purposes of this analysis, we defined a premium site as any site having an average CPM of USD $5.00 and monthly ad revenue of $100,000 as reported in comScore  Ad Metrix™.

The results reveal that premium sites boasted a median in-view rate of 53 percent compared to the 31 percent median in-view rate generated by ad networks/exchanges.

Display Ad Viewability by Placement Type Viewability Rates Vary Significantly Between Individual Media Sellers

While these viewability rates give us a sense of how certain segments of the sell-side perform overall, the sizeable variation within each segment highlights just how important it is to evaluate the individual publisher or network on its own merits. The wide viewability ranges suggest that regardless of the publisher type, there are some members of the sell-side of the market who are delivering very strong in-view rates and others who are falling short on their intention to deliver valuable ad inventory to advertisers.

2012 was a milestone year in the life of digital as several watershed events brought the digital marketplace to new heights and laid the groundwork for the future of the industry. From the London Olympics to the Facebook IPO to the U.S. Presidential Election, this past year saw digital media’s continued rise in prominence as part of Americans’ lives and business pursuits.

This report will examine how these events, along with the latest trends in social media, search, online video, digital advertising, mobile and e-commerce are currently shaping the U.S. digital marketplace and what they mean for the coming year, as comScore helps bring the digital future into focus.

See on www.comscore.com

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