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Health Forums and pain relief drug review / Health Webmasters / Get High Search Engine Ranking / How search engines work - spiders, crawlers, or robots
Posted:  04 Nov 2005 08:13
Like any human surfer, the robots are able to follow the links present on webpages. When finding a new webpage, they copy all or parts of the text present on the page into their search engine database. Other spiders revisit these pages on a regular interval in order to register changes or dead links. The interval varies greatly from search engine to search engine.