Site Radius

Macro-semantics (site level)
Site Radius is a metric from the Google Warehouse API leak measuring a site's topical spread—small radius means focused, large means scattered.

Site Radius is a metric that measures the topical dispersion of a website's content by calculating how scattered pages are around the site's semantic centroid.

For example, Senuto has a Site Radius of 0.15 (low dispersion). The ideal combination is high Site Focus + low Site Radius = topical specialization. High radius means scattered topics, which weakens Topical Authority.

Identifying outliers (content distant from the centroid) is the first step in content pruning. Site Radius and Site Focus Score are two sides of the same coin—Focus measures average proximity, Radius measures dispersion.

Source: AI Semantic SEO Expert, Robert Niechciał (sensai.io)