Index An index is a Search Engine's database. It c

Index An index is a Search Engine's database. It contains all of the information that a Crawler has identified, particularly copies of World Wide Web pages. When a user performs a Query, the search engine uses its indexed pages and Algorithm swirl to provide a ranked list of the most relevant pages. In the case of a Directory, the index consists of titles and summaries of registered sites that have been categorized by the directory's editors.