For each of the eight facets a fan-out targets, mark whether a single passage on your site answers it in under a hundred words. Buried in paragraph four does not count, the chunker does not read ahead.
Why facet coverage, not keywords
AI search decomposes one prompt into eight to sixteen hidden sub-queries, each aimed at a different facet, and a page is evaluated once per sub-query. Ranking #1 for the head term buys a 13% edge inside one list; appearing at all in a second facet buys close to 100%. So the prioritisation metric is no longer search volume, it is how many facets you answer better than anyone.
The eight-facet frame reproduces most commercial fan-outs. Score honestly: a facet only counts if a self-contained passage answers it in under a hundred words, in server-side HTML.
How to use it
- Enter your topic or head term.
- Mark which of the eight facets you answer in under 100 words.
- Write the missing facets it ranks as briefs.
Frequently asked questions
What are the eight facets of a fan-out?
Specification, compatibility, compliance, capability, price, comparison, sentiment and edge case. This frame reproduces most commercial fan-outs, so scoring your coverage against it tells you which sub-queries you can already win and which are open.
Why audit facets instead of keywords?
Because 95% of fan-out sub-queries have zero keyword volume, there is nothing to sort in a keyword tool. The metric that replaces search volume is facet coverage: how many of the sub-queries in your topic you answer better than anyone.
Is the Facet Coverage Auditor free to use?
Yes. The Facet Coverage Auditor is completely free, with no sign-up, no usage limits and no watermark on the output.
Is my data private?
Yes. The Facet Coverage Auditor runs entirely in your browser. Nothing you paste or enter is uploaded, stored or sent to any server.
Related tools and reading
Keep going with the playbooks and tools behind this one.