Ad Fill Rate definition

Ad Fill Rate

The percentage of ad requests that are successfully filled with an ad impression: Fill Rate = (Filled Requests / Total Requests) * 100. Low fill rates may suggest weak demand or misconfiguration.

Metrics

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Ad Fraud and Scamming in Digital Advertising Glossary

Ads.txt / App-ads.txt Glossary

Mobile Advertising Glossary: Metrics and KPIs

oRTB Glossary

OTT / CTV Programmatic advertising glossary

Performance Marketing Glossary

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KPIs

Measurement Frameworks

Metrics

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A ⁽⁹⁾B ⁽²⁾C ⁽¹⁰⁾D ⁽²⁾E ⁽¹⁾F ⁽²⁾I ⁽⁵⁾L ⁽³⁾M ⁽²⁾P ⁽¹⁾R ⁽²⁾S ⁽⁵⁾U ⁽¹⁾V ⁽¹⁾W ⁽¹⁾

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More terms of Metrics

Click mobile-advertising-glossary-metrics

A click occurs when a user taps or interacts with an ad, typically leading to a destination such as an app store page, website, or landing page. Clicks are crucial for measuring engagement.

Metrics

Install Rate (IR) mobile-advertising-glossary-metrics

The percentage of users who clicked on an ad and went on to install the app. It helps advertisers evaluate how compelling their app offering is post-click.

Metrics

Cost Per Install (CPI) mobile-advertising-glossary-metrics

CPI measures the cost to acquire a single app install: CPI = Total Spend / Number of Installs. It’s a standard KPI for user acquisition campaigns in the mobile app ecosystem.

Metrics

Ad Frequency mobile-advertising-glossary-metrics

The average number of times an ad is served to the same user. Helps assess saturation and avoid ad fatigue.

Metrics

Audible On/Off mobile-advertising-glossary-metrics

Indicates whether video/audio ads were played with sound on. This can impact engagement and brand recall.

Metrics

Audio Duration mobile-advertising-glossary-metrics

Captures how long a user listens to an audio ad (e.g., complete plays, average duration, listen-through rate).

Metrics

Fraud Rate mobile-advertising-glossary-metrics

The percentage of ad interactions (clicks, installs, impressions) that are determined to be fraudulent, such as bot activity, fake installs, or click spamming. High fraud rates can skew performance data and waste budget.

Metrics

App Launch Time mobile-advertising-glossary-metrics

Time from tapping the app icon until users see and interact with the app. Includes Time to Initial Display (TTID) and Time to Fully Drawn (TTFD). Typical targets: < 5 s cold start, < 1.5–2 s warm/hot start

Metrics

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