The Deep Web are the sites that aren’t picked up by a search engine like Google. We generally associate the word Deep Web with the Dark Web but they aren’t actually the same thing. The Dark Web – which basically consists of encrypted websites with hidden IP addresses making their users and locations anonymous – is a subset of the Deep Web. Obviously, being able to hide identities like that will create a popular space for criminals to sell their illegal content, etc. But the Dark Web only takes up 0.01% of the Deep Web. The Deep Web is also just things like where your password-protected email accounts are held, parts of paid subscription services and other similar protected data. The Surface Web (what gets picked up by a search engine) only consists of 0.03% of the internet. 

We all know 1 GB is the same as 1024 MB, but did you know that 1 petabyte (PB) is equivalent to 1024 terabytes (TB)?To give an example of how big this is, a 1 PB hard drive could hold 13.3 years of HD-TV video. A 50 PB hard drive could hold the entire written works of mankind, from the beginning of recorded history, in all languages.