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    ContentBuilder.ai
    Glossary›Topic Cluster
    Glossary · Strategy

    What is Topic Cluster?

    Definition

    A topic cluster is a collection of interconnected web pages organized around a central pillar page, all covering different aspects of a single broad topic. The pillar page addresses the main topic, while cluster pages dive deep into subtopics and specific aspects, with all pages cross-linked. Topic clusters help search engines understand topical relationships and establish your authority.

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    Content ArchitectureSEO StrategyTopical AuthorityLinkingSite StructureTopic Cluster
    In short

    Topic Cluster at a glance.

    Hub-and-spoke content structure
    Pillar page plus subtopic pages
    All pages linked and interrelated
    Improves search visibility and authority

    Topic clusters as content organization

    Topic clusters organize content semantically. Instead of isolated pages competing individually, a cluster presents a coordinated body of knowledge. This helps readers navigate a topic comprehensively and helps search engines understand relationships. Organizations that publish content as clusters rank higher, earn more traffic, and establish authority faster than those with siloed pages.

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    Topic Cluster — frequently asked

    Typically 5-15 supporting pages, depending on topic breadth. More pages mean deeper coverage; fewer pages mean focused depth. Quality matters more than quantity.

    Topics broad enough to support 5+ subtopics and specific enough to be cohesive. Example: a cluster on 'Cloud Computing' might include subtopic pages on AWS, Azure, deployment models, security, and cost management.

    Pillar links to all cluster pages in context. Cluster pages link back to the pillar and to adjacent cluster pages where relevant. Avoid excessive interlinking; link contextually where users benefit from navigation.

    From definition to done.

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