Topic Cluster
A content strategy grouping a pillar page with multiple related cluster pages to build topical authority.
Full definition
A topic cluster is a group of content pieces that collectively cover a subject comprehensively. The model consists of one broad pillar page targeting a head keyword, linked to multiple cluster pages targeting long-tail related topics — all of which link back to the pillar. This architecture serves both SEO (strengthening topical authority and internal link equity) and users (providing clear pathways to explore a subject). Google's algorithms reward sites that demonstrate deep coverage of a topic. Building topic clusters is a shift from individual keyword targeting to holistic subject ownership, which better reflects how modern semantic search works.
Real-world example
A cybersecurity firm builds a 'Network Security' topic cluster with one pillar page and 15 cluster articles. Within 6 months, organic traffic to these 16 pages accounts for 52% of total site traffic.
Related terms
A comprehensive page covering a broad topic in depth, linking to related cluster content as part of a topic cluster strategy.
Read definitionWebsite visitors who arrive through unpaid search engine results rather than paid ads.
Read definitionA strategy of creating and distributing valuable content to attract, engage, and convert a target audience.
Read definitionA link from one website pointing to another, used by search engines as a vote of authority and relevance.
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