Clients of Cream will be familiar with MediaMind and their digital advertising solutions. MediaMind also publishes regular studies into the effectiveness of online advertising and their latest research, entitled ‘7 best practices for building a smart ad’, is one of their most comprehensive to date. It’s the result of the analysis of over 300,000 ad creatives and over 1 billion ad impressions with the aim of discovering which environments and which creative treatments work best.
But before we discuss their recommendations, it’s worth introducing you to 2 specific measurement concepts which MediaMind has pioneeered.
The first is dwell rate, which describes the proportion of impressions that have engaged with a rich media ad – be that by touch, interaction or click. The second is dwell time, that being defined as the duration of the dwell, in seconds, for users who engaged.
MediaMind has found dwell rate and dwell time to be more indicative of the impact of an ad than the traditional metric of CTR as much of the user activity in reaction to an online ad occurs ‘post impression’. MediaMind’s own studies have found that users who were exposed to campaigns with high dwell were 3 times more likely to search for a brand related keyword as compared to those who were exposed to campaigns with low dwell.
In addition, campaigns with high dwells boosted advertisers’ site traffic by 69% on average and improved page views and time spent on the site.
So armed with dwell rate and dwell time as our primary measures of ad impact, let’s look at MediaMind’s 7 recommendations:
1. Use Video
Using video ad formats increases dwell rate by 22% because the movement of the video attracts the user’s eye away from the largely ’static’ content of the publisher’s page. And because video allows the user to stay with the ad for longer, video ads also enjoy an 11% higher dwell time.
2. Initiate Your Video Automatically
If the movement of a video ad draws the eye, then it makes sense for this movement to begin automatically when the user hits the page rather than being user-initiated. Auto initiated ads enjoy higher dwell rates and CTRs than their user-initiated counterparts.
3. Match the Ad with Site Creative
Contextual relevance is key – MediaMind’s study found that ads surrounded by relevant content saw sharp increases in performance. Not only is content a powerful indicator of intent, people are more likely to spend more time consuming specialist content, and are therefore more likely to notice and engage with ads.
4. Use Richer, More Visible Ad Formats
As a rule of thumb,MediaMind found that the richer the format, the higher the level of engagement (although this isn’t always the case – at Cream we’ve sometimes found that static campaigns can outperform flash campaigns).
Homepage takeovers, expandable banners, peelback banners and video extensions were found to increase the average dwell duration. Commercial breaks, floating ads and overlays commanded high attention from users and therefore resulted in higher dwell rates (albeit combined with lower dwell durations).
5. Use Synched Ads
Synching ads involves taking 2 different placements and creating one unified experience, and it’s an experience which creates impact without being too intrusive like some other rich media formats. Both dwell rate and CTR were observed to increase, even when compared to running 2 different regular ads on the same page.
6. Take Advantage of Dynamic Creative Optimisation
This process involves the ad server combining different creative concepts with different copy treatments and serving the ad that delivers the greatest level of interaction from users – be that clicks, conversions, dwells or a combination of those actions.
Effectively, clients don’t have to make a call on which creative they believe will be the most effective as the ad server discovers that via trial and error and then focuses on the most effective execution.
Unsurprisingly, dyamically created campaigns saw a 6% increase in dwell rate and a 10% increase in dwell time.
7. Integrate Exchanges into your Media Buy
Incorporating ad exchanges into campaigns was found to boost return on investment and lower cost per conversion.
To help marketers digest these 7 practices, MediaMind have produced an infographic which we’ve included below.
The full report, which includes benchmarks for ad performance by region and country, can be downloaded here.


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