Glossary
Fill rate
The percentage of ad requests that are successfully filled with an actual ad, calculated by dividing impressions served by total requests made.
Where we write about fill rate
- ArticleAd Placement Inside AI Chatbots: Where and How
- ArticleAI App Monetization by Stage: Pre-Revenue to Mature
- ArticleAI App RPM Benchmarks 2026: What Publishers Actually Earn
- ArticleARPU Benchmarks for AI Chatbot Apps (2026 Numbers)
- ArticleGenerative AI Monetization: The 2026 Playbook
- ArticleHow to Monetize an AI Chatbot App: The 2026 Playbook
- ArticleIntegrating Ads Into an LLM Chat Interface: A Publisher's Guide
- ArticleRevenue Per Query for AI Apps: How to Model It Honestly in 2026
More in programmatic and supply
The exchanges, platforms and inventory an impression passes through.