illustration of deep web
Image 1: Illustration of Deep Web

The Dark Web is merely a small part of the Deep Web, while both together make the vast Deep Web. The Deep Web and the Dark Web are distinct in that they contain different types of material and various means to access it. While measuring the extent of the Deep Web is technically impossible, some estimates place it at 500 times the size of the Surface Web, while other researchers believe it is 5000 times greater. Regular search engines only index about 16 percent of the Surface Web and 0.03 percent of all internet information. Databases and directories can be used to reach the Deep Web, as well as specialized search engines that deliver more accurate search results on more specific topics. In this article learn about what is the deep web?

What is the Deep Web?

The deep web, also known as the unseen or invisible part of the World Wide Web, is a section of the Internet that is not indexed by ordinary web search engines. The “surface web,” on the other hand, is open to everyone with an Internet connection. Things like emails, online banking, medical records, restricted access to social media pages and profiles, some web forums that require registration to read the material, and available online services such as video on demand and some online publications and newspapers are examples of the deep web. Content concealed behind login forms and hidden under password-protected websites where only they can access them is where we enter into the Deep Web.

For example, If you’ve ever logged into your email account you’ve browsed the Deep Web. The Deep Web is not as cool as it sounds it’s pretty much just as ordinary as the surface web but with just a bit more secrecy it is the most massive part of the Internet, containing 96% of information on the Internet. However, the Deep Web, which is made up of areas of the web that are not indexed means not searchable by search engines, is frequently mistaken with the Dark web. To learn more about Dark Web read this article: The Dark Web: Hidden Corner of The Internet.

The unindexed material on the Deep Web, despite its reputation, can typically be located in regular databases. The Deep Web is home to PubMed, LexisNexis, and Web of Science. Users of these databases may be unaware that they interact with the Deep Web frequently. The Deep Web is responsible for 90% of all internet traffic. The Deep Web is a key component in improving higher education results, according to current academic studies. Dynamically generated pages, data-intensive pages, and time-sensitive or short-lived pages are all common features of deep Web sites.

Because most libraries provide users with access to hundreds of different databases, it is in the best interests of the information professional to be familiar with the Deep Web and how to use its capabilities to find the correct information.

Rise of Deep Web

The first time the terms “deep web” and “dark web” were used interchangeably was in 2009 when deep web search language was discussed alongside criminal actions on the Freenet and darknet. Personal passwords, fake identification documents, drugs, guns, and child obscene literature are among the illegal behaviors.

The dark web is a portion of the deep web that has been intentionally hidden and is inaccessible through standard browsers and methods. While the deep web refers to any site that cannot be found using a traditional search engine, it is the portion of the deep web that has been intentionally hidden and inaccessible through standard browsers and methods. On the Deep Web, library and information specialists are trained to identify relevant content faster and more efficiently than casual information seekers.

Data of Deep Web

On the deep web, accurate data is difficult to get but as evidenced by BrightPlanet’s study (Bergmann 2001). The deep web is 400 to 500 times the size of the surface web. There are most likely around 200,000 deep websites. When compared to surface websites, deep web pages receive 50% more monthly hits and are better linked.

In 2003, the University of California, Berkeley issued the following values on the Internet’s scopes are 167 terabytes of surface web and 91 850 terabytes on the deep web.

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Types of Deep Web

The term “deep web” refers to websites or portions of websites that are not indexed by search engines. The following are examples of typical deep web kinds.


Communities that demand registration to access the material. For example, a members-only dating site.


For a price, clients can access a database. Example- Credit reporting firms in some countries collect financial data on people and sell it as a service.

Private Networks

Virtual private networks (VPNs) are private networks that can be accessed via technology (VPN). These networks are secured in such a way that only authorized people can access them. This comprises corporate, government, educational, and research networks that can be accessed over the internet. Such private networks’ collective knowledge and data may be an order of magnitude larger than the open web.

Dark Web

Websites that are created on top of the darknet aim to give users privacy. People who are worried about their privacy will be attracted to this. The dark web is also utilized for criminal activity, such as the sale of unlawful goods, services, or activities. The dark web is only a small part of the deep web at the moment. Frequently, the two terms are mixed up with each other.


A digital newspaper or a streaming video are examples of content that demands payment. that’s why they use a paywall to secure their transactions.

Non-Standard Technology

The open web is built on open technology that search engines and browsers can understand. This system is difficult to detect any unique technology.

For example, A large-scale peer-to-peer game environment may be accessible to everyone with the appropriate software, but it is effectively invisible to web browsers.

Unlinked Content

Content that is freely available to the public but isn’t linked anywhere, making it invisible to search engines. A family webpage, for example, that is circulated via email but does not contain any external links, may go unnoticed.

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In comparison to the surface web, the deep web has a lot more data. Users may benefit from the integration of these results since they may gain potentially useful information. However, implementing such a search engine efficiently for both the surface and deep web is complex, and selecting acceptable sources for a search query could be tough. There are many opaque sites on the deep web, that provides scientific and legal data. Aside from a very big black market, there are numerous websites dedicated to cybercriminals, political radicals, and other undesirables. As a result, despite the huge amount of useful papers and data are the deep web should be used with caution.


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