Design the set of pages a site needs to own a topic, as pillar hubs and supporting clusters with a publishing order. Use whenever the user mentions topical authority, topic clusters, pillar pages, hub and spoke, content mapping, semantic SEO, entity coverage, content gap analysis, or asks what set of pages they need to rank for a competitive term. Also use when a site publishes regularly without a plan, or when individual good posts aren't lifting the site overall.
