A web crawler, worm, or search engine bot downloads content from all over the Internet and indexes it. The purpose of such a bot is to know what (almost) every web page on the web is about so that when it’s needed, the data can be retrieved. They are called internet crawlers because the technical term for automatically visiting a website and extracting information from a software application is crawling. What Is Web Crawling? A Crawler is a computer program that reads documents on the Web automatically. Crawlers are primarily programmed so that browsing is streamlined with repeated behavior. Search engines most commonly use crawlers to navigate the web and create an index. […]
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