Sunday, July 9, 2017

Deep web, secrets, truths and lies


The  Deep Web or Deep Web , is that part of the Internet that is not indexed by the search engines, and therefore, is not accessible to the users through Google, Bing or similar. But on the other hand we have the concept of Dark Net or Web Dark , where things are getting trickier ... And of course, we will also talk about what the Tor network is !

What is the deep web?

The web can be divided into two clearly differentiated parts, the shallow web and the deep web. The latter is known as Deep Web , and in that part of the web is all that content that is not indexable by search engines . Or put another way, in the Deep Web is all the content that users can not access through a web browser like Google, for example.
Instead the superficial Web  or Surface Web are all the pages that appear in the search engines and to which all users can freely access. A clear example can be this website,  But to clarify everything, there is nothing better than an image:
The Surface Web and the Deep Web.
The Surface Web and the Deep Web.
On several pages, you can read a different classification according to depth levels . But these levels should not be confused with the separation between  Deep Web and  Surface Web , instead, these levels define the purpose of a web. In this way, the webs of level 1 would be the "good" websites, and those of level 6 would be the worst. But if a web is level 5, for example, it does not imply that it is from the deep web, because the deep web ranking refers to how hidden it is.

The origins of the Deep Web

The concept of  Deep Web arose in 1994 with the name of  Invisible Web . And the truth is that it is a name that makes clear its meaning, everything that is kept hidden and inaccessible to the general public.
And what are those websites? As they can be "normal" page that are kept outside the search engines. But the truth is that the best examples are  Intranets , protected pages or servers that use another protocol. For example, databases would be a very important contributor.

But how deep is the deep web?

From there you can read that in some pages they talk about that the  Deep Web is 80, 90 or 96% of the web. But the truth is that you really do not know how deep the web is .
A few years ago study was done on this topic, and it was estimated that this part of the web could occupy the 7 PB (petabytes).
Depth of the deep web.
Depth of the deep web.

What is the Dark Net?

Now we will explain another concept,  Dark Net . This is where everything is found with a dubiously legal character.
In this group are all kinds of illegal websites such as websites for sales of weapons or drugs, or pages of child pornography. So this is the bad part of the  Deep Web . But unfortunately, many times people confuse both concepts, when they clearly have nothing to do.
The Dark Net, which is important not to confuse with the Deep Web.
The Dark Net, which is important not to confuse with the Deep Web.

What is Tor?

This will be the last concept that we will see in this article. While it is not something that has to be strictly linked to the  Deep Web or the  Dark Net , the truth is that the relationship is clear.
'm talking about Tor or "The Onion Router," an alternative network project that emerged in 2002 , and unlike what many might think, its purpose was not to facilitate cybercrime. In that year an early version of this great piece of free software was presented, in order that its development would continue until reaching a protocol that guaranteed, as much as possible, anonymity on the Internet .
Encrypted by layers.
Encrypted by layers.
This software allows browsing anonymously using a routing system (routing) onion . As its name suggests, it is based on a layered encryption system In this way, only the source and the destination will know the contents of the package. Combining this technology with other protocols and security complements becomes one of the safest methods to surf the Internet, in addition to exponentially increase your anonymity and privacy in the network.
Therefore, if all are advantages, why do not we always navigate using the Tor network? The main drawback is speed. Since a larger encryption is performed, and the packets do not follow a "straight line", the page load time is longer . Another disadvantage is that as you can see in the following image, the last connection is done without encryption, so you have to be careful to navigate sites that use TLS / SSL, in order to protect that last link. But without a doubt, for me the biggest disadvantage is the snoopers . Since the use of Tor is often related to cybercrime, governments are always on the lookout for what Tor network users are doing.
Operation of the Tor network.
Operation of the Tor network.

.onion domains

Finally, I would like to comment on the .onion domains  . Addresses ending with this domain are invisible pages that are accessible through the use of Tor . Therefore, it is used as a way to "differentiate" the pages of the superficial web and the anonymous pages of the  Deep Web , and in particular, of the  Tor network .
Although it is possible to comment one thing, and is that the operation is different from the domains of the superficial network. In fact, the .onion TLD is  not even on the root servers of the Internet DNS . Therefore, it is only possible to resolve these addresses by using a proxy or other technology.

Conclusion

As you can see, the web can not only surf or surf , but we can also dive into it. The truth is that they are really interesting concepts, although to me because of its more technical character what really strikes me is the alternative network Tor , which although not the only one (ZeroNet would be another example), yes it is the most popular. What do you think?
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