Measuring ad attention: the complete guide

Today, in a complex and saturated digital landscape, advertisers face two major challenges: the gradual phase-out of third-party cookies, which complicates tracking and measurement, and the need for reliable measurement of true advertising attention. Measuring advertising attention for your campaigns requires combining three essential KPIs : authentic viewability (50% of pixels visible for ≥ 1 second), attentive seconds(actual duration of attention), and contextual quality (brand safety and fraud detection), allowing you to effectively optimize performance and ROI. Capturing attention is no longer enough; you must measure it precisely to drive business performance. 📈
🔬 To master this topic, Klox offers a comprehensive approach aligned with international standards (IAB, MRC, IAB Europe), while contributing our field expertise and technical innovations.

🔎 This guide aims to provide a clear framework for key KPIs, measurement methods, and operational practices, complementing our previous article on attention marketing.

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The limitations of traditional metrics and new requirements

Classic metrics (clicks, impressions) are no longer sufficient because:

- Between 30% and 50% of ads are simply not viewable, representing a significant waste of investment.
- A significant portion of ad inventory is subject to ad fraud (bot traffic, fake clicks), estimated at 10.9% globally according to the latest Media Quality benchmark report published by IAS (Integral Ad Science).
- brand safety is becoming crucial, with a notable increase of +72% in the share of offensive content between 2023 and 2024, according to the 2025 IAS report.
17.9% of ads in 2025 are potentially being displayed in problematic contexts (violence, hate speech), which harms both effectiveness and brand image.

These limitations require a more sophisticated response, incorporating real attention measurement, fraud prevention, and precise contextual indicators.

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Key KPIs for measuring advertising attention 🔢

Klox, in partnership with MRC-accredited market leaders (e.g., DoubleVerify), offers a unified cross-platform measurement platform incorporating these key dimensions required for measuring attention. Here are the key KPIs for measuring advertising attention in your marketing campaigns:

- Viewability : standard MRC thresholds of 50% surface area for ≥1s in display, ≥2s in video (source).
- Attention : attention rate and duration (favorable exposure time), composite score of attentive seconds / attention index.
- Fraud : SIVT (Sophisticated Invalid Traffic) identification, GIVT (detailed definitions of these terms can be found here) and fake clicks.
- Brand Safety : measuring contextual compliance via brand safety and brand suitability rates.

Klox recommends combining these KPIs for a holistic view of media quality, making it possible to identify ineffective impressions (unviewed, fraudulent, or out-of-context). Our experts then use this unified data to adjust activations and optimize business performance.

How are these KPIs calculated in practice?

Eye-tracking and visual signals

- Real-time eye-tracking (minimum 60Hz frequency)
- Detection of visual fixations >100ms on the ad area
- Calculation of time spent on the ad vs. editorial content

Passive data (behavioral signals):

- Scroll time, pauses, mouse/touch interactions
- Audio status (on/muted), full screen, screen sharing
- Exact position of the ad within the user viewport

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Klox x INA Case Study: measuring and increasing ad attention for Madelen 📺

For the Institut National de l’Audiovisuel (INA) streaming platform Madelen, Klox took on a key challenge: measuring attention beyond simple ad viewability.

Rather than prioritizing mass distribution, Klox opted for a targeted strategy based on the quality of the environments where ads are served and the precise measurement of actual attention.

Through a partnership with Adloox, a specialist in granular attention measurement, Klox was able to:

- Guarantee a 100% brand-safe environment with ad fraud detection and prevention.
- Select environments with high visibility and customer engagement.
- Observe a doubling of ad exposure time in 3 weeks: increasing from 20.5 to 48.3 seconds, representing +135% more attention gained.
- Improve the viewability rate by +10%, reaching a high-performance rate of 90.8%.

This innovative approach perfectly illustrates how Klox transforms attention measurement into a performance driver, offering advertisers a precise, reliable, and actionable view of their campaigns in a cookieless world.

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Sector comparison:

These results significantly exceed standard attention and viewability benchmarks for marketing campaigns:

- Average streaming attention time: 12-15s (vs. 48.3s achieved)
- Standard video viewability: 75-80% (vs. 90.8% achieved)
- General display sector: 1.5-2s of attention (vs. 48.3s with optimized streaming)

Sources:

2025 Advertising Attention Study - RunTheCom

JCDecaux - 2024 Attention Measurement

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Checklist for deploying attention measurement for your advertising campaigns

1. Define objectives (brand, performance, drive-to-store)
2. Select 2–3 priority KPIs
3. Integrate MRC/IAB-certified tools
4. Set alert thresholds (viewability <70%, attention <5s)
5. Launch cross-platform data collection
6. Analyze against benchmarks and optimize

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Measuring advertising attention is now essential to evaluate the real impact of your campaigns and optimize your marketing strategies.

To delve deeper into the concept, understand the overall importance of attention marketing, and learn best practices for capturing attention, check out our previous article: Attention Marketing: How to Catch the Consumer's Eye.

Want to take it further? 📩 Contact Klox for a personalized audit of your advertising campaigns and discover how to maximize the attention and impact of your messages.

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💬 Attention Measurement FAQ

- What is the difference between attention and viewability?
Viewability confirms that an ad has appeared on screen according to MRC standards, while attention measures active perception and the likelihood of impact (memory, action) based on the IAB/MRC framework.
- Which attention measurement KPIs should be prioritized?
Viewable attention, attentive seconds (duration), brand safety, fraud detection, and qualified interaction metrics.
- Does attention really improve performance?
Yes, at Klox we find that it is a better predictor of conversion: a high attention score multiplies the purchase rate by 2 to 3 for campaigns.
- How does Klox ensure the reliability of its measurements?
By integrating MRC-audited and recognized solutions, multi-source data collection, and the use of real-time optimization algorithms.
- How can attention measurement be used to drive ROI?
Integrate attention KPIs into your dashboards to identify drop-off points and optimize ad placements.
- Why choose Klox for attention measurement?
Klox combines technical viewability data, user interactions, and advanced artificial intelligence to produce a unique, reliable attention score applicable to all formats and platforms, ensuring a comprehensive, transparent, and actionable measurement.
- What is the real ROI of attention optimization?
Industry studies show that improving your attention score leads to concrete results:
 - +130% conversions for high-attention impressions (vs. low-attention)
 - +91% brand consideration
 - +166% purchase intent with high attention scores

By optimizing toward high-attention inventory, you reduce costs and media waste.
High-attention impressions generate a success rate twice as high as low-attention impressions.