To this day, a “search engine” is actually a database of website copies. The search engine sends out “spiders,” which are computer programs that go out onto the web and find new web pages. The spiders locate the pages and then copy some or all of the code into the search engine’s own database. When a user searches a search engine, they’re not actually searching the web itself, but are instead querying the database of copied webpages the search engine has compiled.
