List of search engines

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Search engines are digital tools that facilitate online users in finding information on the internet[3]. They operate by scouring the World Wide Web[1], based on specific keywords, and delivering relevant results to the user. This comprehensive list categorizes some of the many search engines available, grouped according to their area of specialization. For instance, Ask.com and Seznam focus on specific content or topics, while IFACnet is used for accountancy-related searches. Business.com and Nexis are structured for business-related queries. Some, like Shodan, are designed for computer-related information. Openverse and Yahoo![4] News are content-specific, while FindFace and Spokeo specialize in people searches. Lastly, HotPads.com and Redfin are geared towards real estate or property searches. Each search engine[2] serves a unique purpose, tailored to meet various users’ information needs.

Terms definitions
1. World Wide Web ( World Wide Web ) The World Wide Web, often referred to as the Web, is a widespread information system platform that billions of people interact with daily. Invented by Tim Berners-Lee in 1989 at the European Organization for Nuclear Research (CERN), the Web was designed to support connections between multiple databases on different computers. Its function is to facilitate content sharing over the Internet in a user-friendly manner. This is achieved through web servers that make documents and media content available. Users can locate and access these resources through Uniform Resource Locators (URLs). The Web supports various content types and allows for easy navigation across websites via hyperlinks. Its use extends to various sectors including education, entertainment, commerce, and government, with information provided by companies, organizations, government agencies, and individual users.
2. search engine. A search engine is a vital tool that functions as part of a distributed computing system. It's a software system that responds to user queries by providing a list of hyperlinks, summaries, and images. It utilizes a complex indexing system, which is continuously updated by web crawlers that mine data from web servers. Some content, however, remains inaccessible to these crawlers. The speed and efficiency of a search engine are highly dependent on its indexing system. Users interact with search engines via a web browser or app, inputting queries and receiving suggestions as they type. The results may be filtered to specific types, and the system can be accessed on various devices. This tool is significant as it allows users to navigate the vast web, find relevant content, and efficiently retrieve information.

Search engines, including web search engines, selection-based search engines, metasearch engines, desktop search tools, and web portals and vertical market websites have a search facility for online databases.

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