Web crawler
A tireless digital explorer, a Web crawler traverses the vast expanse of the internet, following links from one page to another, methodically collecting and cataloging information in its quest to uncover the treasures hidden within the World Wide Web.
Example
Search engines, like Google or Bing, use web crawlers to discover and index new web pages, updating their databases with fresh content. By continuously crawling the internet, these search engines ensure that their results are up-to-date and relevant, providing users with the most accurate and useful information when they conduct a search.