The Internet exists for only a few purposes: Curating a perfect life on social media and videos of people being scared by other people! Ok...that’s not the real reason obviously. The internet actually exists to get the best, most relevant information to people searching for it.
There are a few “search engines” that exist to help people find this information. Google, Yahoo, Bing, and DuckDuckGo are some of them. When you search for something using the search engine, it crawls the web (it’s actually called “spidering”) and “reads” all of the information on every website.