Search Engine

What is a Search Engine?

A website that allows users to search the Web for specific information by entering keywords. Can include paid or organic listings of websites and sometimes specific images, products, videos, music, place entries or other enhanced results.

Search engine (SE) is a service that allows Internet users to search for content via the World Wide Web (WWW). A user enters keywords or key phrases into a (SE) and receives a list of Web content results in the form of websites, images, videos or other online data. The list of content returned via a (SE) to a user is known as a search engine results page (SERP).

To simplify, think of a search engines as two components. First a spider/web crawler trolls the web for content that is added to the search engine’s index. Then, when a user queries a (SE) relevant results are returned based on the search engine’s algorithm. Early (SE) were based largely on page content, but as websites learned to game the system, algorithms have become much more complex and search results returned can be based on literally hundreds of variables.


There used to be a significant number of (SE) with significant market share. Currently, Google and Microsoft’s Bing control the vast majority of the market. (While Yahoo generates many queries, their back-end search technology is outsourced to Microsoft.) Different Types of (SE).

Search engines are classified into the following three categories based on how it works.

  1. Crawler based
  2. Human powered directories
  3. Hybrid
  4. Other special

Top 10  After Google Are:

  1. Bing. The second most popular search engine is Microsoft’s Bing, securing a good hold in the online market. …
  2. DuckDuckGo  Great for Privacy !
  3. Yahoo!
  4. Qwant. …
  5. Yandex. …
  6. Search Encrypt. …
  7. StartPage.
  8. SearX.


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