A site map or XML Site map is a visual or textually model of a website’s content designed to help both users and search engines navigate the site. through the site to find the information they are looking for, just as a traditional geographical map helps people find places they are looking for in the real world. If your Web site is small and uncomplicated sitemap is not necessary.
There are many websites available for creating create sitemap online for free. Just you need to enter your website URL and some parameter. Then you will get a XML file content and link to a sitemap file. File content and link to a sitemap file.