Overview of the navigational structure of a website, acting like a Table of Contents, and used to orient users and show them the scope of the site. Site maps can be textual or visual. Usually each location is an active link, enabling a user to move directly to that section. Site maps can also be important sources of links for search engine spiders to follow.

A hierarchical visual model of the pages of a Web site. Site maps help users navigate through a Web site that has more than one page by showing the user a diagram of the entire site's contents. Similar to a book's table of contents, the site map makes it easier for a user to find information on a site without having to navigate through the site's many pages. Also, in SEO, a site map can make it easier for a search engine spider to find all a site's pages