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Home/Magazine Archive/November 2009 (Vol. 52, No. 11)/Why Web Sites Are Lost (and How They're Sometimes.../Abstract

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Why Web Sites Are Lost (and How They're Sometimes Found)

By Frank McCown, Catherine C. Marshall, Michael L. Nelson
Communications of the ACM, November 2009, Vol. 52 No. 11, Pages 141-145
10.1145/1592761.1592794
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The Web is in constant flux — new pages and Web sites appear daily, and old pages and sites disappear almost as quickly. One study estimates that about two percent of the Web disappears from its current location every week. To automate recovering lost Web sites, we created a Web-repository crawler named Warrick that restores lost resources from the holdings of four Web repositories.

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