Search Engine Definition

A search engine is a software system allowing users to search for information on the World Wide Web. The program identifies items in a database corresponding to the users' input query and outputs a list of matching content called a search engine results page (SERP).

Most popular search engines include:

  • Google.
  • Bing.
  • Yahoo!
  • Yandex.
  • DuckDuckGo.
  • Baidu.