An outline of a website’s navigation that’s written for humans. Most HTML sitemaps are linked in the bottom navigation of a website. They enable site visitors to find pages they’re looking for. It’s similar to an index at the end of a book, which is intended to help its readers locate a specific section among a huge amount of content.
Here’s an example of an HTML sitemap:
Image Source: Statcounter
*Note: Most of the time someone references a sitemap, they’re talking about the XML sitemap, which is also an outline of a site’s navigation but is written for search engines rather than humans.