In a previous post, we talked about approaches to measuring display ad effectiveness that go beyond clickthrough.
In this post, we’ll look at one of those approaches, the concept of Dwell, in a little more detail as it’s described in an Eyeblaster Benchmark Insights paper. And we’ll touch on how you can measure Dwell performance for your own Xspot campaigns.
What exactly is Dwell?
Dwell as a performance metric was developed, in response to research by Eyeblaster, Microsoft Advertising, and comScore, to capture the branding effect of display ad campaigns.
You calculate Dwell in two different ways:
- Dwell Rate measures how successfully an ad captures viewers’ attention. Dwell Rate equals the number of viewers who physically touch an ad divided by the number of ad impressions served.
- Dwell Time measures how long viewers were exposed to an ad. Average Dwell Time equals the total amount of time all viewers spent engaging with an ad divided by the total number of viewers.
What does Dwell affect?
Based on comparisons of high and low Dwell campaigns, researchers found that viewers exposed to high Dwell campaigns are significantly more likely to:
- Search for brand-related keywords.
- Visit advertiser websites and, during those visits, spend more time and view more pages.
- Convert.
What produces better Dwell?
Given Dwell’s affect on branding and conversion, advertisers may want to take concrete steps to improve Dwell performance for their campaigns. The research data provides advertisers with some specific actions to take:
- The Dwell research found a direct correlation between the length of time an ad is presented and Dwell Rate. This means advertisers are likely to see higher Dwell Rates with ads placed on pages, such as news sites, where viewers spend more time.
- Video ads perform better than ads without video. On average, adding video to ads increases Dwell Rate by 29 percent and also nearly doubles Dwell Time.
- Polite and expandable banners typically have relatively high Dwell Time but relatively low Dwell Rate (as compared to commercial break and floating ad formats). To increase banner ad Dwell Rate, make the starting images that initially load as engaging as possible.
How can I measure Dwell for an Xspot campaign?
Dwell Rate In the Mixpo platform, Active View Rate is equivalent to Dwell Rate. Active view rate is calculated by dividing the number of times viewers play or replay an ad by the number of impressions served.
Average Dwell Time In the Mixpo platform, you have three ways to measure time spent with an Xspot:
- Avg. Viewed = percentage of an Xspot viewers are watching averaged across all viewers.
- Percent Completed = percentage of viewers who watched the entire Xspot.
- Exposure = the total number of minutes all viewers of an Xspot spent watching it.

















