Cost of Retrieval (CoR)
Micro-semantics (passage level) Cost of RetrievalCoR
Cost of Retrieval (CoR): cost of extracting information from text fragments. The lower the better (BLUF, tables, lists, facts first).
Google is like a customer in a restaurant with limited time — chaotic menu = customer leaves for the competition. In the CQS formula it has a weight of 0.20. The golden rule says if a sentence doesn't contain an entity, attribute, or value: consider removing it.
CoR operates on two levels: technical (TTFB, HTML weight, crawl budget) and content-based (text structure, Information Density).
Source: AI Semantic SEO Expert, Robert Niechciał (sensai.io)