The Spotlight Author allows you to change your page's content to see how the Spotlight algorithm changes.
This entity-based algorithm uses a
knowledge graph
(based on WikiData) to perform
topic clustering,
and entity extraction / disambiguation. The algorithm will show you what your likely topic cluster is, as well as the total content coverage
of that topic cluster, expressed as a percentage (an
Expertise Score).
This free Spotlight Author tool offered by Market Brew uses pieces of its
search engine model
to show a partial Spotlight calculation for a web page. Spotlight is an important input into the
Spotlight Focus algorithm,
a modeled algorithm inside of Market Brew that is consistently correlated with overall rankings.
To discover which groups of pages Google biases using this algorithm, using the most advanced SEO A/B testing platform,
get a license.