To know XML site map first we need to know about sitemap. Sitemap works as a road map of any website. Using the road map we can easily find our destination just like that using the sitemap of any website we can esily find their web page's imformation. Just like that an XML sitemap works for search engines spider.XML sitemaps are created particularly for the search engines spider. All of the most well-known search engines including Google, Yahoo and Bing operate XML sitemaps as part of their practice for indexing the web pages of a website. A good XML sitemap will inform the search engine what pages are in your website, how frequently those pages are updated, and when they were previous modified. This way, the search engines know which web pages to revisit more frequently, and are possible to do a superior job of indexing them.
Following codes are example of what a simple XML Sitemap might look like:
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
<url>
<loc>http://www.example.com/</loc>
<lastmod>2005-01-01</lastmod>
<changefreq>monthly</changefreq>
<priority>0.8</priority>
</url>
<url>
<loc>http://www.example.com/catalog?item=12&desc=vacation_hawaii</loc>
<changefreq>weekly</changefreq>
</url>
<url>
<loc>http://www.example.com/catalog?item=73&desc=vacation_new_zealand</loc>
<lastmod>2004-12-23</lastmod>
<changefreq>weekly</changefreq>
</url>
<url>
<loc>http://www.example.com/catalog?item=83&desc=vacation_usa</loc>
<lastmod>2004-11-23</lastmod>
</url>
</urlset>
