A sitemap is a file that includes the different pages of a site and the way to them through the sections of the website. The web pages can be arranged visually or as plain text and this type of a file is rather useful for 2 reasons. The first one is that it makes it faster and easier for the site visitors to find a specific page they need, so that they can navigate your Internet site better and a lot quicker, that in turn will increase their user experience and it will be more likely that they will revisit the Internet site or will recommend it to other people. One more reason is the fact that a sitemap permits search engines to index your content better, especially when it is updated, so when users are trying to find certain content, it's more likely that they'll find your Internet site because it will be listed higher in their search engine results. If your website is not indexed efficiently, it may not appear for some searches, so even in case you have what people require, they will simply not get to the site.