How do search engines like Google work? How do they find the web page you want to view?

What are search engines? It's a special web site designed to help people find information stored on other sites.

So how do they work? Search engines like Google are Crawler-Based Search Engines.

These search engines hold an index of a few hundred thousand pages and documents, and received maybe one or two thousand inquiries each day. Today, a top search engine will index hundreds of millions of pages, and respond to tens of millions of queries per day. The search engines "crawl" or "spider" through these web sites and find and list all the web sites including the keyword  the user typed into the search engines.