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Bing Webmaster Tools (previously the Bing Webmaster Center) is a free service as part of Microsoft's Bing search engine which allows webmasters to add their websites to the Bing index crawler, see their site's performance in Bing (clicks, impressions) and a lot more.
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Microsoft Bing (also known simply as Bing) is a search engine owned and operated by Microsoft.The service traces its roots back to Microsoft's earlier search engines, including MSN Search, Windows Live Search, and Live Search.
The search engine might make the copy accessible to users. Web crawlers that obey restrictions in robots.txt [2] or meta tags [3] by the site webmaster may not make a cached copy available to search engine users if instructed not to. Search engine cache can be used for crime investigation, [4] legal proceedings [5] and journalism.
When a search engine visits a site, the robots.txt located in the root directory is the first file crawled. The robots.txt file is then parsed and will instruct the robot as to which pages are not to be crawled. As a search engine crawler may keep a cached copy of this file, it may on occasion crawl pages a webmaster does not wish to crawl.
Make sure you include a space before the minus sign (-), but not after. To find content for two or more topics of equal interest, use or in between your search words. For example, to find information on either poodles or schnoodles, search for poodles OR schnoodles.
Architecture of a Web crawler. A Web crawler, sometimes called a spider or spiderbot and often shortened to crawler, is an Internet bot that systematically browses the World Wide Web and that is typically operated by search engines for the purpose of Web indexing (web spidering).
A spider trap (or crawler trap) is a set of web pages that may intentionally or unintentionally be used to cause a web crawler or search bot to make an infinite number of requests or cause a poorly constructed crawler to crash.