Search engine

A search engine is a software system that helps people find information on the World Wide Web by searching for keywords and returning a list of relevant pages.

How it works

Search engines use programs to browse and index billions of web pages. When a user types a query, the engine ranks and displays results it judges most relevant.

Examples

Google is the most widely used search engine, along with others such as Bing. Search engines are central to how people navigate the internet.

Frequently asked questions

What is a search engine?

A tool for finding information on the internet.

What is the most popular search engine?

Google.