Definition
Architecture is the skeleton: URL hierarchy, hub-and-spoke clusters, breadcrumb logic and menu depth. Flat logical structures concentrate authority efficiently; tangled ones strand pages three-plus clicks deep and confuse topical signals.
Why it matters
Architecture decides whether internal links compound or leak - rebuilding it on established sites regularly outperforms months of new content.
Benchmarks
Money pages reachable within 3 clicks of home
All glossary terms