Website structure is crucial for accessibility, user experience, and search engine optimization (SEO) success. It refers to how web pages are organized and linked together on a website. A well-structured site includes clear hierarchy and intuitive navigation, which helps visitors find what they're looking for, improves SEO, and contributes to brand trust. To create an effective site structure, start by researching similar sites, group pages by purpose and subject matter, create comprehensive menus, and tie your pages together with internal links.