Anemone is a web spider framework that can spider a domain and collect useful information about the pages it visits. It is versatile, allowing you to write your own specialized spider tasks quickly and easily.
See anemone.rubyforge.org for more information.
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Multi-threaded design for high performance
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Tracks 301 HTTP redirects to understand a page’s aliases
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Built-in BFS algorithm for determining page depth
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Allows exclusion of URLs based on regular expressions
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Choose the links to follow on each page with focus_crawl()
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HTTPS support
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Records response time for each page
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CLI program can list all pages in a domain, calculate page depths, and more
See the scripts under the lib/anemone/cli directory for examples of several useful Anemone tasks.
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nokogiri
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fizx-robots (required if obey_robots_txt is set to true)