Search engines work in an orderly manner. The search engine first responds to a request for information. The search engine retrieves information from the appropraiate web pages by sending a Web crawler (a spider) over the written content on the Internet.
After collecting all of the information that it considers significant, the search engine moves on to the next phase in its established order of business.
The search engine next decides how the collected information should be indexed. The search engine performs the first phase of its indexing function by locating special “tags” within article titles and section headings.
The search engines takes the words extracted from each examined text and stores them in an index datatbase.
That indexed material guides later retrieval of any content desired by any user of the search engine. Satisfactory completion of that retireval hinges on the nature of the query, the query entered into the search engine.
The search engine uses the criteria provided by the Internet user to identify the web pages with the most relevant information.
Once the search engine has assembled all that information, it then proceeds to rank the same information.
