AI answer engines rank at the passage level, not the page level. A page that ranks for a keyword often gets cited because one specific paragraph was retrieval-ready — declarative, self-contained, fact-dense, with no unresolved pronouns. This scorer breaks a URL into passages and tells you which ones an LLM would lift verbatim.
Scores each 40-120 word passage on six retrievability signals: self-containment, fact density, direct-answer opener, pronoun resolution, subject clarity, citation-shape length.