Browse Definitions :
Definition

search engine

On the Internet, a search engine is a coordinated set of programs that includes:

  • A spider (also called a "crawler" or a "bot") that explores the Internet by following hyperlinks, starting with a core group of "seed" URLs covering major hubs.
  • A program that creates a huge index (or database) from the pages that have been read
  • A program that receives your search request, compares it to the entries in the index, and returns results to you

Google is the most widely used search engine in the world capturing about 92% of search users worldwide. Yahoo and Bing come in second at just over 2% each. DuckDuckGo has gained some popularity due to their focus on protecting user's private search data. Other popular search engines in the world are Baidu (China), Yandex (Russia), and Naver (South Korea).

Different Search Engine Approaches

  • Major search engines such as Google, Bing, and Yahoo index the content of a large portion of the Web and allow users to query their index to find relevant pages.
  • Specialized content search engines may be more selective about what part of the Web is crawled and indexed.
  • Country specific search engines may prioritize in-language websites over English websites.
  • Individual Web sites, especially larger corporate sites, may use a search engine to index and retrieve the content of just their own site. Some of the major search engine companies license or sell their search engines for use on individual sites.

Where to Search

Google is the search engine of choice for most people in the world. The quality of their results tends to outshine their competitors. Search results are integrated with their other databases: Maps, News, Images, Gmail, and Videos (Google owns YouTube). Google has shifted over the years to providing results based strictly on popularity (links) to more of a focus on the user intent of queries.

Some users may prefer to use Bing or Yahoo for their other integrated offerings. Some users may prefer a site that prioritizes data privacy like DuckDuckGo.

How to Search

For tips on entering your search argument, see each search engine. Google has a helpful page on how to search.

This was last updated in October 2018

Continue Reading About search engine

SearchCompliance
  • risk reporting

    Risk reporting is a method of identifying risks tied to or potentially impacting an organization's business processes.

  • risk profile

    A risk profile is a quantitative analysis of the types of threats an organization, asset, project or individual faces.

  • risk appetite

    Risk appetite is the amount of risk an organization is willing to take in pursuit of objectives it deems have value.

SearchSecurity
SearchHealthIT
SearchDisasterRecovery
  • What is risk mitigation?

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a business.

  • fault-tolerant

    Fault-tolerant technology is a capability of a computer system, electronic system or network to deliver uninterrupted service, ...

  • synchronous replication

    Synchronous replication is the process of copying data over a storage area network, local area network or wide area network so ...

SearchStorage
  • cloud archive

    A cloud archive is storage as a service for long-term data retention.

  • cache

    A cache -- pronounced CASH -- is hardware or software that is used to store something, usually data, temporarily in a computing ...

  • archive

    An archive is a collection of data moved to a repository for long-term retention, to keep separate for compliance reasons or for ...

Close