A sitemap is a visual or text map of an Internet site - a list of all web pages organized in sections as they appear on the website. The sitemap is a single file and its presence can have a significant effect on the popularity of your Internet site, especially if you have a lot of content. It will enable your website visitors to browse the pages and find what they need quicker, which will raise the chance for them to revisit the Internet site or to share it with friends and colleagues. The sitemap is also essential for search engines to index your site content better, so that some pages will be in the results for specific searches, which will most likely not happen without having a sitemap even when you have the desired content. This is especially valid when you modify some web pages since the sitemap tells the search engines that they need to crawl the site again so as to index the new content. Having a sitemap nowadays is essential rather than an optional feature for every profitable website.