A sitemap is a file that contains the different pages of an Internet site and the path to them through the sections of the website. The pages can be organized visually or as plain text and this sort of a file is rather useful for two reasons. The first is that it makes it a lot easier for the website visitors to discover a particular page they need, so they can navigate your Internet site better and a lot faster, that in turn will improve their user experience and it will be more likely that they will come back to the site or will recommend it to other people. One more reason is that a sitemap permits search engines to index your website content better, particularly when it is updated, so when users are interested in certain content, it's much more likely that they'll find your website because it will be listed higher in their search engine results. In case your website is not indexed effectively, it might not show up for some searches, so even if you have what people require, they will not get to your site.