Search engines such as Google and Bing use bots to creep pages on the web going from site to site collecting information about those pages and placing them in an index. Think of the index as a giant library where a cataloger can pull up a book or a web page to help you find truly what you’re looking for at the time.

Next system analyzes pages in the index taking into account hundreds of ranking factors or signals to determine the order pages should perform in the search results for a given query. In our library analogy the librarian has read every single book in the library and can tell you certainly which one will have the answers to your questions.