Which tool allows users to search for information on the internet using keywords or phrases?

A search engine is specifically designed to help users find information on the internet by using keywords or phrases. When a user enters a search query, the search engine scans its indexed pages and provides a list of relevant results. It utilizes algorithms to determine the most pertinent content based on the keywords entered, allowing users to efficiently retrieve the information they are looking for.

In contrast, a web browser is a software application that enables users to access and navigate the internet, but it does not perform searches itself; it simply displays results from a search engine or web pages. A content management system is used for creating, managing, and publishing digital content, primarily on websites, rather than searching for information. A web server is a system that hosts web pages and serves them to users upon request, but it does not facilitate the search process itself.