To many people, Google IS the internet. It’s the default homepage and the first port of call before accessing any site. It’s arguably the most important invention since the Internet itself. Without search engines, content would all be hand picked – just like newspapers and magazines. And while search engines have changed a lot since those first humble beginnings – and Google certainly isn’t the onlysearch engine out there – the underlying principles are the same as they always were.
Do you know how search engines work? There are three basic stages for a search engine: crawling – where content is discovered; indexing, where it is analysed and stored in huge databases; and retrieval, where a user query fetches a list of relevant pages.
Via Charles Tiayon