- The installation of Fiber Optic cable to be used for Internet traffic that was never activated due to factors including lack of funding and owning entity financial bankruptcy.
- Internet resources that cannot be searched and indexed by Internet search engines such as Google due to factors including the requirement of authentication credentials, private network routing, or firewalls blocking indexing. More correctly this condition should be referred to as "Deep Web" rather than Dark Web.
- Specifically restricted areas of the Internet sometimes used for illegal activity, such activity being on the spectrum from copyright infringement through to intellectual property distribution, personal identify information and other more serious criminal activity. Again, these are sites on the public Internet that cannot be searched and indexed by search engines such as Google due to blocking technology.