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Search tools
Search tools for finding information on the Internet include web search engines, the search engines on individual websites, the browsers' hotkey-activated feature for searching in the current page, meta search engines, web directories, and specialty search services.Web search
A Web search allows a user to enter a search query, in the form of keywords or a phrase, into either a search box or on a search form, and then finds matching results and displays them on the screen. The results are accessed from a database, using search algorithms that select web pages based on the location and frequency of keywords on them, along with the quality and number of external hyperlinks pointing at them. The database is supplied with data from a web crawler that follows the hyperlinks that connect webpages, and copies their content, records their URLs, and other data about the page along the way. The content is then indexed, to aid retrieval.
To view this information, a user enters their search query, in the form of keywords or a phrase, into a search box or search form. Then, the search engine uses its algorithms to query a database, selecting
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