Terminology

Terminology

The first conflation of the terms "deep web" with "dark web" came about in 2009 when deep web search terminology was discussed together with illegal activities taking place on the Freenet and darknet.

Since then, after their use in the media's reporting on the Silk Road, media outlets have taken to using 'deep web' synonymously with the dark web or darknet, a comparison some reject as inaccurate and consequently has become an ongoing source of confusion. Wired reporters Kim Zetter and Andy Greenberg recommend the terms be used in distinct fashions. While the deep web is a reference to any site that cannot be accessed through a traditional search engine, the dark web is a portion of the deep web that has been intentionally hidden and is inaccessible through standard browsers and methods.

Source : https://en.wikipedia.org/wiki/Deep_web