Topic Cluster — Definition & Meaning
What is Topic Cluster?
A topic cluster is a content model where one long-form "pillar" page targets a broad head term, surrounded by multiple "spoke" pages targeting related long-tail sub-topics, all interlinked. It signals topical authority to Google's NLP models and dominates a category more effectively than isolated blog posts.
Topic Cluster — Definition & Meaning is part of LemRank, the rank intelligence platform for SEO agencies and in-house teams: daily rank tracking, SERP change detection, AI Overview and LLM visibility, competitor gap analysis, site audits and white-label client reporting.