Enterprise URL structure should be hierarchical, predictable and flat. A maximum of three directory levels for most page types reduces crawl depth and improves indexation speed. Avoid category redundancy in URLs (e.g. /products/category/sub-category/product) when /category/sub-category/product delivers the same hierarchy with one fewer level. Each URL segment should be human-readable and keyword-relevant.
Topical silos group related content into clusters where a pillar page covers the broad topic and cluster pages cover specific sub-topics. Internal links flow from cluster to pillar and between related cluster pages. This creates topical authority signals that large sites leverage better than small sites — the depth of coverage across a topic cluster is more impactful at scale.
On large sites, link equity from the homepage flows through a limited number of high-authority navigation links. Critical commercial pages must be reachable within two to three clicks from the homepage. Pages buried at four or more click depth receive minimal equity and rank poorly. Conduct a click-depth analysis annually and restructure navigation to surface high-value pages.
Enterprise SEO is search optimisation for large websites, often with thousands or millions of URLs, multiple teams and complex publishing systems. The work shifts from editing single pages to managing templates, crawl budget, indexation and governance at scale.
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TPR Media explains enterprise SEO site architecture for large Australian sites: the three-level URL maximum, topical silo architecture for authority clustering, and the click-depth principle that ensures high-value commercial pages receive adequate link equity.