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The Deep Web


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The Deep Web

  1. 1. Deep Web That part of the Internet people don’t really know about English Course Level 4 - Facultad de Cs. Exactas, UNICEN By Martín Pacheco
  2. 2. What is it? • The dark web, the hidden web, …is the “hidden” part of the web. • Not part of surface web. • Inaccessible to convertional search engines and consequently to must users. • Not indexed.
  3. 3. What's in the Deep Web? • Drug purchage, illegal pornography • Company secrets • Hacking sites • Whistleblowing sites • Lots of goverment information • Data sets
  4. 4. How BIG is the Deep Web? • 550 billon / 1 billon documents • 400 to 500 times the content of the surface web • No domain names, thus making sites hard to find. • Google has indentified 1.2 billon documents. • An internet search typically searches .03% (1/3000) of available content.
  5. 5. The Surface Web Search Form Google, Yahoo… Crawler Index Results Web Pages
  6. 6. The Surface "hiden" Web
  7. 7. How can you Access it? • Download TOR (Firefox). • Take precautions. • Browse Websites on the Deep Web • Wikis, another indexes, some search engines… • Very old, "90s style" looking websites. • The use of a currency called "BitCoins".
  8. 8. Bibliography 1. "THE DEEP WEB: SURFACING HIDDEN VALUE", Michael K. Bergman. The Journal 2. "STRUCTURED DATABASES ON THE WEB: OBSERVATIONS AND IMPLICATIONS", 3. 4. Electronic Publishing, Volume 7, Issue 1. August, 2001. Kevin Chen-Chuan Chang, Bin He, Chengkai Li, Mitesh Patel, Zhen Zhang. Computer Science Department, University of Illinois. 2004. "ACCESSIBILITY OF INFORMATION ON THE WEB", S Lawrence, CL Giles. NEC Research Institute, Princeton University. July, 1999. "CRAWLING THE HIDDEN WEB", Sriram Raghavan, Hector Garcia-Molina. Computer Science Department, Stanford University. December, 2008.