Spider (Web Crawler)

A spider, also known as a web crawler, is a program used by search engines to explore and index the internet. It systematically visits web pages, reads their content, and follows links to discover new pages. This process helps search engines understand what each page is about, enabling them to provide relevant results when users search for information. The spider operates continuously, updating its index to reflect changes on websites and ensuring the search engine's data remains current. Its role is essential in organizing the vast information on the internet for easy access.