Web crawler is a computer program that browses the World Wide Web in a methodical, automated manner. Spidering is used by many search engines as a means of providing up-to-date data. Web crawlers are mainly used to create a copy of all the visited pages for later processing by a search engine that will index the downloaded pages to provide fast searches.
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Anthracite is an advanced web mining desktop application built for the Mac OSX platform, user can write scripts to download only desired content and take actions accordingly.
