A quick primer: What is AU?

AU is Adelaide’s 0–100 media quality rating that predicts a placement’s ability to capture attention and drive business outcomes.

Five digital devices displaying advertisements with different audio unit (AU) levels: laptop at 19.3 AU, smartphone at 24.7 AU, desktop monitor at 32.2 AU, tablet at 38.9 AU, and large TV screen at 36.2 AU, all with a red ad banner on screens.

Built on placement-level exposure signals, eye-tracking data, and real campaign outcome data across billions of impressions, AU gives advertisers a simple, scalable way to evaluate media quality and invest in placements that perform.

AU is trusted by leading brands and agencies to measure, optimize, and activate media quality across channels.

Why your media plan needs a quality check

Low-quality inventory can look efficient on paper, but cheap CPMs and high viewability rates don’t necessarily mean it’s worth buying.

Across campaigns, high-AU media consistently delivers stronger outcomes2:
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Tech
3x
more conversions on high-AU placements
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Apparel
60%
higher conversion rate and 28% lower cost per conversion
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CPG
108%
lift in ad recall for placements above the AU quality floor
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Automotive
61%
lift in awareness using AU-optimized media

2. High-AU placements vs. below-benchmark placements in the same campaign. AU-measured studies, 2025

The difference isn’t luck. It’s media quality.

Adelaide’s Media Quality Calculator shows exactly how your domain mix compares to AU benchmarks, so you can see where it’s working, where it’s not, and the gaps holding your campaigns back.

How the Media Quality Calculator works

STEP 1
Enter your work email
We’ll send your full results there.
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STEP 2
Upload your list
Submit a simple one-column CSV with the domains or app bundle IDs in your plan.
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STEP 3
Get your quality analysis
See where your list is strong, and where it isn’t.

What you’ll get

A clear read on overall media quality, channel-level performance, and where there’s room to optimize.

Overall quality insights:

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Average AU across your uploaded list
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Share of domains falling below AU benchmarks
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Your biggest optimization opportunity
Adelaide Media Quality Calculator Results showing an overall performance summary with average AU 28.4, low-AU domains 24.9%, domain match rate 97.6%, and largest channel gap OLV. It explains weighted average AU and domain match rate, highlighting strong match of 97.6%. A bar graph illustrates overall share of low-AU domains as moderate at 24.9%. Another bar graph shows the largest channel gap with OLV having widest gap to its AU benchmark. An overview explains AU as a 0-100 media quality rating predicting placement effectiveness, combining eye-tracking research and data to measure media quality across channels, formats, and devices. There is a call to download an AU overview onesheet. Text includes contact questions and copyright info.

Channel-level insights:

Stylized graphic with four geometric shapes in orange with a light outline arranged horizontally, resembling ascending bars or mountain peaks.
Average AU scores by channel
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Benchmark performance comparisons
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Distribution across high- and low-AU quality tiers

Ready to see how your media stacks up?

Get your free report