web crawlers

Web crawlers, also known as spiders or bots, are automated programs that systematically browse the internet to gather information from websites. They navigate web pages by following links, collecting data such as page content, keywords, and structure. This information is then used by search engines to index and rank pages, making it easier for users to find relevant information through searches. Think of web crawlers as digital explorers that survey the web to organize its vast content for easier access.