Search engine
Search engines use robots to ‘crawl’ online content. The process of crawling is the first measure that search engines take before indexing content in virtually any form–videos, text, images, webpages, etc. The content may constitute newly uploaded content to the internet or content that features updates or changes to its material. These robots, also known as crawlers or bots, record the information along with its links. Once the material has been crawled, it can be stored in a massive URL database. It’s this database that generates internet search results.