The hidden wiki url is a term often associated with the darknet, a part of the internet that is not indexed by traditional search engines. It is commonly used to refer to a directory or index of sites that exist on the Tor network, which is known for its emphasis on privacy and anonymity. The hidden wiki url serves as a guide to various websites on the dark web, offering links to forums, marketplaces, and other content, some of which may not be accessible through standard browsers.