TOR, I2P, Freenet) form the dark web.ĭark web sites are accessed by thousands of people every day however, there is no central repository for these sites that simplify finding contents within them. The dark web is not one network, rather, it is a term for any closed network that requires specific software, configurations, or authorization to access that mask the identity of its visitors (e.g. The dark web is a tiny portion of the deep web (it makes up less than 1% of the entire web’s size). Both surface and deep web can be accessed using typical web browsers however, things are different when talking about the deepest layer of the web (the dark web) which requires special software to access. Typical search engines cannot index their contents. Many researchers estimate the deep web’s size to be 400 to 550 times the size of the surface web. The deep web makes up the greatest volume of the web’s content. requires paid access), login pages, or requires the user to enter search queries in HTML forms to retrieve information from deep web databases. The content within this layer is hidden behind a paywall (i.e. The surface web makes up less than 4% of the entire web content and includes web pages that are indexed by typical search engines, such as Google and Yahoo. The surface–or normal - web is what most people refer to when talking about the internet (although the internet and the web are two different terms).

The World Wide Web is composed of three layers: the surface, deep, and dark webs. For instance, many enterprises rely on information collected from dark web communities to predict future attacks against their IT infrastructure and information systems. Nowadays, cyber threats are coming from everywhere, from both the surface and the dark web.

Tor search engine onion