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mirror sites

Posted on 2004-10-17
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is there a tool to find mirror sites? how do search engines find them? thanks.
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Question by:testn1
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duz earned 1000 total points
ID: 12333609
test1 -

>is there a tool to find mirror sites? how do search engines find them?

Duplicate pages which is kinda the same thing http://www.copyscape.com/ which is supplied by the same company who do the Google Alert service.

>how do search engines find them?

You can read Google's patent on detecting query-specific duplicate documents here, it is quite straightforward http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/srchnum.htm&r=1&f=G&l=50&s1=6,615,209.WKU.&OS=PN/6,615,209&RS=PN/6,615,209

- duz
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by:testn1
ID: 12335068
Thank you.
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