Deep Web

The entire category of web content that is not included in conventional search engines.

The deep web is the part of the connected systems of cataloged online information (alternatively known as the World Wide Web) that is hidden away from public access and view. Due to the secrecy of this side of the web, internet users cannot access their information using normal search engines such as Google and Bing.

Compared to the information ordinarily available on the internet, the deep web has more than 90% of the information that users upload on the web.