Sitemap
A diagram of all the pages in a website or app and how they relate hierarchically — the blueprint of its structure and navigation.
A sitemap lays out every page of a site or app and the parent-child relationships between them, usually as a tree. It is the concrete expression of information architecture — the shared map a team agrees on before designing individual screens.
There are two flavors worth distinguishing: a design sitemap for planning structure, and an XML sitemap that lists URLs for search engines to crawl. Both matter — one keeps humans oriented, the other helps a site get discovered — but they are different artifacts serving different audiences.
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Related terms
Information ArchitectureThe structural design of a product's content and navigation — how information is organized, labeled, and grouped so people can find it.User FlowA map of the sequence of steps and decisions a user moves through to complete a task, from entry point to goal.WireframingSketching the low-fidelity skeleton of a screen — layout, content blocks, and hierarchy — before any visual styling is applied.