Search Engine

A search engine operates like a directory for the World Wide Web. A search engine is a web site that attempts to index (store) all or most of the Web in a database. When a user visits the search engine and conducts a search, the search engine returns results from its database, together with links to the actual sites where the information was collected from. Search engines use proprietary algorithms (formulas) to determine which web pages are most relevant to a user’s search and displays the most relevant results first.