10-18-2014, 05:20 AM
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#6
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Registered User
Join Date: Sep 2014
Location: India
Posts: 139
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Quote:
Originally Posted by satnam1980
Web crawler is a computer program that browses the World Wide Web in a methodical, automated manner or in an orderly fashion. Other terms for Web crawlers are ants, automatic indexers, bots, Web spiders, Web robots,or especially in the FOAF community Web scutter..
Caching can happen at many places, including proxies (i.e. the user�s ISP) and the user�s local machine. The objective is to make efficient use of resources and speed the delivery of content to the end user.While caching can have a positive impact on the user�s experience, it can have a negative impact for site publishers, resulting in undercounts of page views and ad impressions. In response to this problem, sites have implemented various cache-busting techniques to better ensure that all performance statistics are accurately measured.
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Nice information thanks for sharing with us
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