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A site map (or sitemap) is a list of pages of a web site accessible to crawlers or users. It can be either a document in any form used as a planning tool for Web design, or a Web page that lists the pages on a Web site, typically organized in hierarchical fashion. Sitemaps make relationships between pages and other content components. It shows shape of information space in overview. Sitemaps can demonstrates organization, navigation, and laneling system. == Types of site maps == There are two popular versions of a site map. An XML Sitemap is a structured format that a user doesn't need to see, but it tells the search engine about the pages in a site, their relative importance to each other, and how often they are updated. HTML sitemaps are designed for the user to help them find content on the page, and don't need to include each and every subpage. This helps visitors and search engine bots find pages on the site. You cannot submit an HTML sitemap in Google Webmaster Tools as it is not a supported sitemap format. While some developers argue that site index is a more appropriately used term to relay page function, web visitors are used to seeing each term and generally associate both as one and the same. However, a site index is often used to mean an A-Z index that provides access to particular content, while a site map provides a general top-down view of the overall site contents. XML is a document structure and encoding standard used, amongst many other things, as the standard for webcrawlers to find and parse sitemaps. There is an example of an XML sitemap below (missing link to site). The instructions to the sitemap are given to the crawler bot by a Robots Text file, an example of this is also given below. Site maps can improve search engine optimization of a site by making sure that all the pages can be found. This is especially important if a site uses a dynamic access to content such as Adobe Flash or JavaScript menus that do not include HTML links. They also act as a navigation aid 〔(Site Map Usability ) Jakob Nielsen's Alertbox, August 12, 2008〕 by providing an overview of a site's content at a single glance. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Site map」の詳細全文を読む スポンサード リンク
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