Passage Ranking.

Google introduced passage ranking in the early 2020s and corrected a common misunderstanding while doing so: this is not a second indexing method. Whole pages are still what gets indexed. What is new is that the ranking system can evaluate individual passages inside those pages separately. A detailed guide about website costs can therefore become visible through a single section on maintenance retainers, for a question the document as a whole would be far too broad for. Language models such as BERT supply the understanding of meaning within a section.

In practice, passage ranking shifts the smallest optimisable unit from the page to the section. That devalues the old habit of building a separate thin page for every long-tail keyword. Depth wins instead: a well-structured document with twelve cleanly headed sections can be visible for twelve different questions without pages cannibalising each other. The condition is that each section is thematically self-contained and answers its question in the opening sentences, rather than spreading the answer across the whole page.

Passage ranking is also the bridge to AI search. The retrieval layer that AI Overviews and AI Mode draw their evidence from works passage by passage as well. A section good enough to become a featured snippet is usually the same section a language model quotes. The optimisation work is identical in both cases: a clear heading phrased as a question or a term, a complete answer beneath it in two to four sentences, and only then the detail. That structure pays into classic rankings, snippets and AI citations at once.

An example: on dlm-digital.ch the page /wissen/website-kosten-schweiz draws 1,562 impressions at an average position of 59.4. The demand clearly exists, but the page answers the individual questions too vaguely. The lever is not more text, it is decomposition: one section each for the entry-level price, for running costs, for the difference between a website builder and custom development, and for what drives the price upwards. Only then can Google surface one of those sections deliberately.