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The importance of sitemaps doesn’t require any emphasis. It is currently very important that every webmaster creates and submits a sitemap to the search engines. A sitemap is basically a list of URLs that describe a website’s sections and pages. The most common sitemap is the HTML-formatted one, but XML sitemaps are also common. Others such as text sitemaps are currently not so common but still useful in some cases. A sitemap is supposed to ensure that users and search engine bots find specific content irrespective of their location on the website. Naturally, websites are crawled periodically by bots but this is unpredictable. Furthermore, there is no guarantee that even during the crawling, all pages will be identified and indexed by the search engines.
