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Impact vs. Impressions: Why OOH Delivers Real Results

By
The Team
Mark
Published on
April 17, 2025
11
min read

Mark

Anderson

Business Director

Advertising lead with over 25 years driving success.

Connect on LinkedIn

In the advertising world, impressions have long been a key metric for measuring campaign reach. But do they really tell the full story?

In the advertising world, impressions have long been a key metric for measuring campaign reach. But do they really tell the full story? Digital impressions—often counted when an ad simply loads on a screen—fail to capture true audience engagement. Meanwhile, Out-of-Home (OOH) advertising offers tangible impacts, reaching real people in real environments. Here’s why impacts matter more than impressions and why OOH remains an irreplaceable part of a strong media strategy.

What Are Impressions Really Measuring?

A digital impression is logged when an ad is loaded on a webpage or app, regardless of whether a person actually sees it. Even “viewable impressions” (which require 50% of an ad’s pixels to be visible for at least one second) offer little assurance of audience engagement. In many cases, digital impressions are vastly overestimated, often by up to 91% due to factors like bot activity, accidental loads, and ignored ads.

Simply put, impressions are a measure of ad delivery, not effectiveness. They don’t tell you whether your audience noticed the ad, engaged with it, or remembered your message.

OOH Delivers Measurable Impacts

Unlike digital impressions, OOH advertising generates multiple audience impacts. Every time a person passes a billboard, transit ad, or street-level display, it creates a visual connection that digital cannot replicate. OOH exists in the real world, where audiences can’t scroll past or install ad blockers.

More importantly, OOH’s impact is not limited to single-user views. Unlike a digital ad viewed by one person at a time, an OOH campaign reaches multiple people simultaneously, maximizing brand exposure in high-traffic areas.

The Visibility Problem: Why Digital Overestimates Reach

One of the biggest flaws in digital advertising is that impressions count potential views, not actual visibility. Just because an ad appeared on someone’s screen doesn’t mean they saw it. Banner blindness, ad saturation, and rapid scrolling mean many digital ads go unnoticed.

In contrast, OOH campaigns benefit from visibility-adjusted impacts, ensuring ads are seen rather than just served. When a billboard is placed in a prime location, every passerby is a guaranteed impression—no filters, no bots, no guesswork.

The Audience Funnel: OOH vs. Digital

The way audiences engage with OOH versus digital media is fundamentally different. Digital relies on interruptions—forcing an ad into a user’s feed or before a video. This often leads to frustration and disengagement.

OOH, on the other hand, is seamlessly integrated into the audience’s environment. People encounter OOH ads naturally as they move through cities, travel, and commute. This creates a subconscious familiarity with the brand, leading to stronger recall and conversion rates.

Why OOH Is a Smarter Investment

For brands looking to maximize real-world engagement, OOH offers far greater value than inflated digital impressions. Key advantages include:

  • Higher audience trust – Unlike disruptive digital ads, OOH is perceived as more credible and trustworthy.
  • Guaranteed visibility – No ad blockers, no accidental clicks—just real people seeing real ads.
  • Shared exposure – A single OOH placement can be seen by thousands daily, delivering significantly more impact per ad placement.
  • Longevity – Unlike fleeting digital ads, OOH placements remain in the public eye, reinforcing brand messages over time.

Final Thought: Measuring What Matters

While digital advertising metrics often inflate perceived reach, OOH provides tangible, lasting brand exposure. Instead of chasing empty numbers, brands should focus on real-world impacts that drive awareness, recall, and action.

If your campaign’s goal is real engagement rather than vanity metrics, OOH should be at the top of your media strategy.

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