A sitemap is a visual or text map of a site - an index of all web pages grouped in sections as they appear on the Internet site. The sitemap is a single file and its presence may have a considerable impact on the popularity of your Internet site, especially when you have more content. It will make it possible for your site visitors to browse the web pages and find what they need much faster, that will raise the possibility for them to revisit the site or to share it with friends and colleagues. The sitemap is also needed for search engines like google to index your site content better, so that some pages will be in the results for certain searches, which might not happen without a sitemap even if you have the needed site content. This is especially valid when you update some webpages as the sitemap tells the search engines that they have to crawl this Internet site again to index the new content. Having a sitemap nowadays is fundamental rather than an optional attribute for every profitable website.