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what are spiders


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#1 Korin

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Posted 30 May 2013 - 05:20 PM

can anybody tell me what spiders are



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#2 Dolby

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Posted 30 May 2013 - 05:47 PM

 A program that automatically fetches Web pages. Spiders are used to feed pages to search engines. It's called a spider because it crawls over the Web. Another term for these programs is webcrawler.

Because most Web pages contain links to other pages, a spider can start almost anywhere. As soon as it sees a link to another page, it goes off and fetches it. Large search engines, like Alta Vista, have many spiders working in parallel.

 

http://www.webopedia.com/TERM/S/spider.html

 

...googleing it yourself is easier...



#3 Korin

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Posted 31 May 2013 - 10:01 AM

I coudln't find anything when I searched google so I asked here... so Web Crawler is same as Spider then? ok thanks






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