International Journal of Computer Applications
In this era of digital tsunami of information on the web, everyone is completely dependent on the WWW for information retrieval. Most of the information is hidden behind the query interface. In the query interface the user types the keyword to access the web pages. These pages are known as the Hidden web, Invisible Web or Dark Web. Such kind of web pages cannot be indexed by the Search Engines. As these are not indexed by the search engines these pages cannot be returned and displayed to the users. This paper discusses the various reasons due of which they are not indexed by the search engines and the possible solutions for these reasons.