Web Crawler

A Web Crawler, also known as a spider or bot, is an internet bot that systematically browses the World Wide Web for the purpose of indexing web pages. Search engines like Google use web crawlers to update their web content or indices of others’ web content. Crawlers analyze the content of sites and follow links to discover new pages, helping search engines deliver relevant search results. Web crawling is essential for search engine optimization (SEO), as it affects how websites are indexed and ranked.