spider trap(spī´dër trap) (n.) A condition of dynamic Web sites in which a search engine��s spider becomes trapped in an endless loop of code where a spider��s request for a page from a Web server is met with a the server��s request for an information input from the spider, which cannot provide information to the server as it is only collecting data for the search engine��s index. Spider traps are the result of poorly written cgi scripts and potentially can crash a server and/or prevent the spider from returning to a site.
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