A well-planned architecture generally favors a relatively flat structure (important pages reachable within a few clicks of the homepage) over a deep, many-layered hierarchy, since click depth directly affects crawl frequency and internal link equity distribution as covered under Click Depth. Good architecture groups related content logically into clear categories or clusters (supporting the hub-and-spoke content model), uses a consistent, predictable URL structure that reflects that grouping, and is planned deliberately before a site scales past a few hundred pages, since restructuring architecture on an already-large site is a far more expensive undertaking involving careful redirect planning to avoid losing accumulated rankings and link equity in the process.
Example
A resource-heavy site plans its glossary, guides, and blog as three distinct top-level sections with clear cross-linking between related content in each, rather than dumping all content into one undifferentiated blog feed.
Related terms
Related Reading
404 Error
A 404 error is the standard HTTP status code returned when a requested page doesn't exist on the server — the classic 'page not found' response.
A/B Testing (SEO)
A/B testing in SEO is the practice of showing two versions of a page element — usually a title tag, meta description, or on-page element — to see which one earns a better click-through rate or ranking outcome.
AI Citation
An AI citation happens when an AI assistant like ChatGPT, Perplexity, Claude, or Gemini references or links to a specific page as the source for part of its answer.
