System and method for implementing a robot proof Web site
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United States of America Patent
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May 13, 2008
Grant Date -
Mar 14, 2002
app pub date -
Jul 9, 2001
filing date -
Sep 12, 2000
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention prevents robots from browsing a Web site beyond a welcome page. When an initial request from an undefined originator is received, the Web site responds to it with a welcome page including a challenge. Then, on receiving a further request from the undefined originator, the Web site can check whether the challenge is fulfilled or not. If fulfilled, the undefined originator is assumed to be a human being and authorized to go on. If the challenge is not fulfilled, the undefined originator is assumed to be a robot, in which case site access is further denied.The invention prevents Web site contents from being investigated by robots while not requiring users to have to log on.
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