Web Crawler (software)

A web crawler, also known as a spider or bot, is a software program that systematically visits websites to collect and index information. It starts from a list of known pages, retrieves their content, and follows links to discover other pages. This process helps search engines organize and understand the vast content of the internet, making it possible to deliver relevant search results. Web crawlers operate continuously, updating their indexes to reflect new or changed content, ensuring users receive accurate and timely information when searching online.