What is Site architecture?

Site architecture is the way a site's pages are organized and connected through links and hierarchy. It determines how easily crawlers and users reach any page from the homepage, and how authority flows between pages.

How it works

Good architecture is usually shallow and themed: important pages sit few clicks from the homepage, and related pages cluster into topic groups that link to each other. This gives crawlers efficient paths and gives engines a clear map of what your site is about.

Poor architecture buries pages deep in click paths, scatters related content, or relies on navigation crawlers cannot follow, leaving valuable pages under-crawled.

Site architecture vs internal linking

Site architecture is the overall structure and hierarchy; internal linking is the mechanism that implements it. Architecture is the plan of which pages relate to which; internal links are the physical connections that make that plan crawlable. You design the first and build it with the second.

Why it matters for B2B

Topical clusters built through architecture are how you signal subject authority to AI engines. A glossary that links to its pillar topics and across its own terms tells an engine you cover the subject comprehensively, not just in one isolated page. Your existing topic pillars plus the interlinked glossary already model this; the new glossary should plug into the same web.