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HOW SPIDER WORK
To achieve search engine optimization effectively, web crawlers, web spiders and search engine robots play a vital role. Search engines are the most important elements for finding information on the vast ocean of the World Wide Web. Different users search information on the internet through various search engines, whichever they are comfortable with. But how do these search engines get information, from where do they find so much of information on anything under the sun is a question? Search engines are smart enough to maintain their own database of information.
There are spiders which search engines send to the World Wide Web to find information for us. These web spiders crawl various websites and index them in search engine databases or directories for information searchers to seek information on the net.
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