What Is Information Architecture (IA)?

What it applies to

Every website with more than a handful of pages. IA work happens before design or development begins — it determines what pages exist, how they are named, and how they connect to each other.

How to design information architecture

• Audit existing content: List all current pages and assess whether each should be kept, merged, removed, or redirected.
• Understand user goals: What are the three most common tasks visitors come to do? The IA should make those tasks achievable in the fewest clicks.
• Card sort: Have 5–10 representative users group content topics into categories that feel logical to them. Use the results to inform navigation labels and hierarchy.
• Create a sitemap: A hierarchical diagram showing every page, its parent, and its children. Define URL structure at this stage — it should mirror the hierarchy.
• Tree test: Give users tasks and ask them to navigate the proposed sitemap to find the answer. A high success rate validates the IA before any design begins.

IA and SEO

A well-designed IA produces a logical URL structure (yourdomain.com/services/webflow-development/), clear internal linking paths, and topical clusters that signal authority to search engines. IA decisions made before build are far cheaper to change than those discovered after launch.