A Web crawler is a program, often called a bot or robot, which systematically browses the Web to collect data from Webpages. Typically search engines (e.g. Google, Bing, etc.) use crawlers to build indexes....Русский 中文 (简体) 正體中文 (繁體) A web crawler is a program, often called...which systematically browses the Web to collect data from webpages...