MakeUseOf: “Key Takeaways

• The invisible web is vast, including the deep & dark web.
• Specialist search engines like Ahmia and Torch can access it but use Tor to access individual sites from the search results.
• Sites like Pipl, Directory of Open Access Journals, The Wayback Machine, Veridian, and Project Gutenberg hold valuable content for different use cases.

Not everything on the web will show up in a list of search results on Google or Bing; there are numerous places that the sites’ web crawlers cannot access. To explore the invisible web, you need to use specialist search engines. Here are our top 12 services to perform a deep internet search.”