YouTube is testing a new image ad format that runs alongside videos in landscape mode. Here's how it changes your mobile advertising strategy.
YouTube is experimenting with a mobile ad format that changes how ads appear during video playback. According to Search Engine Land, the platform is testing static image ads that overlay on the screen while videos continue playing in landscape mode, no pause, no full interruption. For advertisers, this is a new inventory channel. For viewers, it's a middle ground between intrusive and invisible.
Unlike traditional pre-roll ads (which play before the video starts) or mid-roll ads (which stop the video mid-stream), this overlay format runs a static image ad on part of the screen while the video keeps playing. The content doesn't pause. The viewer can continue watching. The ad sits there, waiting for interaction or dismissal.
The format is live in landscape mode on mobile, which is where longer-form content like tutorials, reviews, and streams spend time. It's designed to be less disruptive than traditional interruption, which means viewers are more likely to stay engaged with both the video and the ad.
This is still in test phase. If you're already running YouTube ads, keep your current campaigns stable. When YouTube notifies you that this format is available in your account, treat it as a new placement to experiment with. Run a small test campaign, maybe 10 to 15 percent of your YouTube budget, to see how image overlays perform against your existing pre-roll and mid-roll ads.
Measure three things: clickthrough rate (does the image format drive clicks?), video completion rate (do viewers stay until the end?), and conversion rate (do clicks turn into customers?). If performance is better than your standard pre-roll, shift more budget. If it's worse, stick with what works.
This format also signals a shift in how YouTube thinks about monetization on mobile. Longer-form content is growing, and traditional mid-roll ads interrupt user experience. Overlaid image ads give YouTube a way to increase revenue without angering the audience. For you, that means the platform is actively creating new ways to reach viewers without breaking their experience. That's a tailwind worth paying attention to.
How WebKing runs this
We track YouTube's ad tests and translate them into your campaign planning. When new formats roll out, we adjust targeting and budget allocation so you're bidding on the most efficient placements before they get crowded.
That depends on demand once YouTube rolls it out broadly. Early on, new ad formats typically offer better rates because competition is light. Once more advertisers discover the placement, costs will likely rise.
Image ads work best when you have strong visual products or services. E-commerce, local services, and B2B companies with clear product images will see the strongest results, since the ad runs without pause and needs to grab attention fast.
The format doesn't pause the video, which is actually an advantage, viewers stay engaged with the content while your ad is visible. However, like all display ads, clickthrough depends on creative quality and relevance, not just placement.
No. If and when YouTube rolls this out to your account, add it as a new campaign or placement option alongside your existing pre-roll and mid-roll. Test it with a small budget first to measure performance before shifting spend.
Sources
The Lab is original analysis by WebKing. We summarize and interpret developments from the sources above for industrial, commercial, and small business owners. Figures are reported as published by their sources.
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