SEO

    SILO Structure

    Quick definition

    SILO structure is an information architecture approach that organizes a site into tightly themed sections (silos), with internal links staying primarily within each silo.

    Silos concentrate topical authority on individual themes. Each silo behaves almost like a mini-site, with its own pillar, cluster pages, and tight internal linking.

    Why SILO Structure matters

    Strict silos are less common today than hybrid topic-cluster models, but the underlying principle — concentrate authority on a topic — still drives modern internal linking strategy.

    How SILO Structure works in practice

    Use silos or clusters to organize navigation, URLs, breadcrumbs, and internal linking. Avoid arbitrary cross-linking that dilutes the topical focus of each section.

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    Related terms

    Content Cluster / Topic Cluster
    A content cluster (or topic cluster) is a group of interlinked articles built around a central pillar page covering a broad topic in depth.
    Internal Linking
    Internal linking is the practice of connecting pages on the same website through hyperlinks, helping users navigate and search engines understand site structure.
    Pillar Page
    A pillar page is a long-form, comprehensive resource covering a broad topic, designed to rank for high-value head terms and centralize topical authority.
    Topical Authority
    Topical authority is a site's recognized expertise on a specific subject, built through deep, interlinked content coverage and relevant backlinks.
    Rich Result
    A rich result is a search result enhanced with visual elements like ratings, images, prices, FAQ accordions, or videos — typically powered by structured data.
    Schema Markup
    Schema markup is structured-data code (usually JSON-LD) added to a page to help search engines understand its content and unlock rich results.

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