Information architecture (IA) in web design refers to the structure and organization of the website's content and navigation. It involves the planning and design of how information is presented, categorized, and accessed on a website. The key components of information architecture include:

• Site structure and hierarchy - How the website's pages and content are organized and interconnected
• Navigation and labeling - The way users move through the website and find the information they need
• Content organization and categorization - The logical grouping and classification of content
• Search and findability - Ensuring users can easily locate and access the information they're looking for

Effective information architecture helps users understand the website's structure, find relevant content quickly, and navigate the site intuitively. It's a crucial aspect of user-centered web design that improves the overall user experience.