The Best Search Engine
Search Engines and Descriptions:
An internet search engine is intended to search for information on the World Wide Web. The search outcomes are commonly offered in a list of results and are frequently called hits. The information may consist of web pages, images, information and other types of files. Some search engines also search available in databases or directories. Unlike web directories, which are maintained by human editors, search engines operate algorithmically or are a sometimes setup as a mixture of algorithmic and human input and adjustments.
Internet search engines work by storing information about billions web pages, which they retrieve from the html source code. These pages are retrieved by a Web crawler search engine spider which is an automated Web browser which follows every link on the site.
The contents of each page are then analyzed to determine how it should be organzied and data about web pages are stored in an index database for use in later queries by search engine users.
The purpose of an index is to allow information to be found as quickly as possible. Some search engines, such as Google, store all or part of the source page as well as information about the web pages, whereas others, such as AltaVista, store every word of every page they find. This cached page always holds the actual search text since it is the one that was actually indexed, so it can be very useful when the content of the current page has been updated and the search terms are no longer in it.