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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.
Bing, Google, Yahoo and Ask now jointly support the Sitemaps protocol. Since the major search engines use the same protocol, [ 3 ] having a Sitemap lets them have the updated page information. Sitemaps do not guarantee all links will be crawled, and being crawled does not guarantee indexing. [ 4 ]
robots.txt is the filename used for implementing the Robots Exclusion Protocol, a standard used by websites to indicate to visiting web crawlers and other web robots which portions of the website they are allowed to visit.
AOL Search offers a number of search verticals to help you find the information you want quickly and easily. These are located just below the search box at the top of the search results page. The default option is always web search, but you can select another by typing your search term in the box and clicking the name of the category.
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.
Search engines serve their pages to millions of users every day, this provides a large amount of behaviour information. A scraping script or bot is not behaving like a real user, aside from having non-typical access times, delays and session times the keywords being harvested might be related to each other or include unusual parameters.
One option is to click "Try now" underneath the heading "Bing generative search," located directly below the general search bar on the Bing homepage. Click "Try now" to test out the search engine ...
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.