November 15, 2006

Sitemaps now supported by Microsoft and Yahoo.

Google started it, but sitemaps has since been adopted by most of the large search organizations out there. If you own a website, and have a lot of static content, you probably should be investigating at creating and updating sitemap on regular basis.

Sitemap is basically an XML file which describes the contents and change frequency of the site. If you ever had pages hidden deep inside your website which were not getting indexed before, sitemaps is an excellent way of advertising those pages to the search engine.
Sitemaps are an easy way for webmasters to inform search engines about pages on their sites that are available for crawling. In its simplest form, a Sitemap is an XML file that lists URLs for a site along with additional metadata about each URL (when it was last updated, how often it usually changes, and how important it is, relative to other URLs in the site) so that search engines can more intelligently crawl the site. Web crawlers usually discover pages from links within the site and from other sites. Sitemaps supplement this data to allow crawlers that support Sitemaps to pick up all URLs in the Sitemap and learn about those URLs using the associated metadata. Using the Sitemap protocol does not guarantee that web pages are included in search engines, but provides hints for web crawlers to do a better job of crawling your site.

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