Table I.

Different areas of the web

Areas	Description
Open web	The publicly visible part of the internet that can be access through standard search engines; includes indexed websites. Accessible by using conventional legal search engines: Google, Yahoo, Reddit, CNN.com, and others
Deep web	The internet that is generally hidden from public view. The deep web is not accessed via standard search engines. Much of its content is ordinary and legitimate. Organizations have websites that can only be read by authorized employees or clients, with their information password protected. One example is the medical history of an individual, which can be accessed by authorized persons. Type of contents accessible: Academic databases, medical records, financial records, legal documents, selected scientific reports, selected government reports, subscription only information, organizations-specific repositories.
Dark web	Generally accessible using dedicated software. This includes The Onion Router, I2P, and other software programs including Subgraph OS, Tails, Opera, Whonix, Firefox, and Waterfox. The Onion Router provides anonymizing software that can be accessed via a Google search and then downloaded free of charge. The Onion Router itself is not the dark web, but is a way to browse both the open and dark web, without being able to identify the user or track its activity. Type of contents accessible: Drug trafficking, pornography, sexual soliciting and abuse activities, assassination market, unlicensed guns traffic, fake IDs, terrorism, gambling, hacking tools, stolen credit cards, political protest and violence instigation and other illegal activities.