A Spider is aprogram that automatically fetches web pages and feeds them to search engines. (It's called a "spider" because it crawls around the web.) Because most web pages contain links to and from other pages, a spider can start almost anywhere. As soon as it recognizes a link to another page, it goes off and fetches it. Large search engines have many spiders working simultaneously. Also known as a crawler.
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piping engineering course | pds in chennai
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piping engineering course | pds in chennai
