What Is A Search Engine?

January 5, 2009 by D. A. Shaver

A search engine visits web sites using computer programs called robots or spiders. They gather information about web sites in a process called indexing. This information might be in the form of subject matter of the web site and links contained on it pages. The search engine keeps a database of this information, which is then shown to visitors to the search engine web site. Searchers find information by typing in key words or phrases at the search engines website. In order to gather the biggest share of the search market search engines try to have the most informative, relevant listings

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