![]() ![]() These include websites with registration requirements fee-based video and media on-demand services such as Netflix, HBO Max, Apple TV+, Amazon Prime, and Spotify and various password-protected entities. There are numerous types of deep web content. Types, viewability, and risks of deep web content These methods include using CAPTCHAs, multiple IP addresses for the same content, non-HTML content or data that spiders cannot pick up, password protection, and unlinked content. In some cases, websites use various methods to block spiders and prevent indexing. This means there is no easy, direct way for the general public to search this vast amount of unindexed content. With only about 4 percent of all online content freely accessible (making up the surface web), the remainder is tucked away in the deep web. Later, when people search for specific content, the results appear in a search engine such as Google, where the content is then openly viewable. As these spiders capture Web pages, they follow embedded links to uncover additional content. net, or a similar domain as well as some data and posts at social media sites. These systems typically scan websites that contain. How the deep web worksĬontent that resides on the surface web is accessible because software robots called “spiders” or “crawlers” capture and index it, and search engines assign it rankings. Much of this content is in the form of databases that are accessible only by password or subscription or for a fee. In fact, it is likely some 500 times larger than the surface web and may contain as much as 96 percent of online content. The deep web represents a vast array of data and content. Called “dark” because it is accessible with anonymity and only through certain networks and software such as Tor, this part of the Internet represents a small fraction of the overall Web. The deep web is also known as the “invisible web” or “hidden web,” but it should not be confused with the “ dark web,” where encrypted content with hidden IP addresses resides. Bergman, who differentiated it from the “surface web,” where openly viewable and retrievable content resides. The term was coined in 2001 by computer scientist Michael K.
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