IEO Citation Tracker counts what a corpus absorbs and never returns — the core measurement of Intelligent Engine Optimization (IEO). Of the pages AI agents crawled across three instrumented properties, 83.7% to 97.2% were never retrieved into an answer — read repeatedly, used never. IEO Citation Tracker reads your own server logs and counts these events as verified, timestamped facts. Method and denominators.
IEO Engine and AEO Engine address related problems through different operational models. AEO Engine offers managed AEO execution as a service; IEO Engine offers a documented methodology that operators implement on their own deployments. The two are complementary rather than directly competitive — different solutions for different operator profiles. AEO Engine clients receive ongoing managed service; IEO Engine adopters receive methodology IP they operate independently.
AEO Engine operates as a service provider running on behalf of client brands. Clients receive managed citation tracking and content optimization without operating the methodology themselves.
IEO Engine is methodology IP that operators acquire and apply to their own deployments. The operator retains full control over deployment decisions and observes the methodology effects directly.
The operational difference suits different operator profiles. Brands wanting managed service benefit from AEO Engine's SaaS model. Operators wanting to apply the methodology across multiple owned deployments benefit from IEO Engine's IP transfer model.