What Is the Dark Web? How It Works and How to Stay Safe

Updated on Sep 11, 2025 by Shauli Zacks
What is the Dark Web

It’s easy to think of the dark web as the black market of the internet, a secret corner where hackers gather, leaked personal data floats around, and pirated downloads of every kind are up for grabs. But the truth is, that’s only one “dark” part of the story.

To fully understand what the dark web is and whether there’s any reason for you to go there, we’ll break down the different layers of the internet and how they relate to one another. We’ll also dig into common questions like how to access the dark web and whether or not it’s safe. We’ll also share some tips for protecting your personal data if you decide to explore it.

What Is the Dark Web?

The dark web is a hidden part of the internet that isn’t indexed by search engines like Google and Bing, meaning you won’t find links to dark web sites in mainstream search engine results. Instead, it uses its own search engines – we’ll get to that later.

To visit the dark web, you need special software, most commonly the Tor browser, which routes your internet traffic through multiple servers to mask your identity and location. This same technology also protects the websites themselves, keeping operators and visitors anonymous. 

This level of privacy serves different purposes for different people. Activists, journalists, and privacy advocates may use it to communicate safely and avoid censorship, while others may abuse it for illegal activities like selling drugs or stolen data.

How and Why the Dark Web Was Created

The dark web as we know it grew out of technology originally created by the US Navy. In the mid-1990s, the U.S. Naval Research Laboratory developed a project called Tor (The Onion Router). Its original purpose was to let government agents and dissidents communicate securely without giving away their identities or locations. 

But, for anonymity to really work, Tor needed lots of people using it, not just spies and their handlers. That’s why the technology was released to the public as open-source software. Once Tor became widely available, people began using it to host websites, giving rise to what we now know as the dark web.

Understanding the Layers of the Web: Surface, Deep, and Dark

The dark web is just one of the three main layers of the internet. Each one has a different purpose and functions in its own unique way.

An illustration of a building with floors representing the different layers of the web and icons showing the types of content they contain.

Surface Web

This is the standard internet you use daily on your phone, computer, smart TV, and IoT devices. It’s where you check your email, read the latest sports and news, search on Google, play games, and stream Netflix.

The surface web is public and searchable, and while it may feel like the entire information superhighway, it really only makes up a small fraction of the internet.

Deep Web

This layer contains all the online content that isn’t crawled or indexed by search engines. Things like content behind paywalls, email messages, cloud storage, bank accounts, medical records, and private company databases are all part of the deep web.

The amount of data on the deep web far surpasses what’s on the surface web. But because of the private nature of this data, it’s kept hidden.

Dark Web

The dark web is a small part of the deep web. Dark web sites don’t use familiar domains like .com or .org; instead, they use .onion addresses, which you can’t just open in Chrome, Edge, Safari, or any other standard browser. That’s why you can’t find dark web links in search engines and need a special browser to find them.

While the dark web is often linked with illegal marketplaces and cybercrime, it also includes legitimate uses, like secure communication tools for journalists, whistleblowers, and people living under censorship.

How the Dark Web Works

Dark web sites use .onion addresses, which only work within the Tor network, short for “The Onion Router.”

Tor is an entire network (not just a browser) of volunteer-run servers, known as nodes or relays, that work together to hide online activity. When you use the Tor Browser to visit a dark web site, your data doesn’t take a direct path. Instead, it’s wrapped in several layers of encryption and sent through a chain of at least three relays.

Here’s a simplified version of the chain of events:

  • Entry node: This first server can see your IP address but doesn’t know where your data is headed. It simply forwards it to the middle node.
  • Middle node: This server passes the encrypted data along without knowing where it originated from or where it’s ultimately going. It forwards the data to the exit node.
  • Third node: This final server decrypts the last layer of encryption and sends your data to its destination. It can only see that it came from the middle node.
An infographic showing how Tor encrypts data and relays it through a series of nodes before sending it to .onion services.

The advantage of the layered design is that no single node ever knows the full picture. It’s like mailing a package inside several boxes, each with its own destination. Each relay opens only the outermost box and forwards the next one, never seeing the entire path.

What Type of Content Is Available on the Dark Web?

If you think the dark web is mainly a hub for shady activity, you may be surprised. In fact, plenty of completely legal content exists there, much of it centered around privacy, free expression, and information sharing. Here are some common examples:

Marketplaces

Dark web marketplaces operate like underground versions of eBay or Amazon. They host a wide range of listings, from digital products like e-books and software to niche collectibles and privacy-focused services you may struggle to find on the surface web. Most transactions on these sites use cryptocurrencies, which add another layer of anonymity for all parties.

Forums and Social Networks

Just like the surface web, the dark web hosts forums and social platforms where people connect anonymously. The focus of these communities tends to be on tech subjects such as coding, gaming, cybersecurity, and online privacy, but you’ll also find discussions on conspiracy theories, politics, philosophy, and a range of other topics.

Whistleblower Platforms and News Outlets

For journalists and activists, the dark web serves as a vital tool for safely exchanging sensitive information. Platforms like SecureDrop and GlobaLeaks give whistleblowers a way to share documents without revealing their identity. 

Major media outlets, including The New York Times and the BBC, host onion sites specifically to receive tips securely from sources who fear surveillance or retaliation.

Email Services

Several secure email providers, such as Riseup and Mailbox.org, provide onion sites for users who want to add an extra layer of privacy and anonymity to email communications.

Nonprofit and Advocacy Organisations

Several prominent civil liberties and privacy groups offer .onion services, including Amnesty International, Electronic Frontier Foundation (EFF), Privacy International, Freedom of the Press Foundation, and, unsurprisingly, the Tor Project.

How to Access the Dark Web Safely

Accessing the dark web is easy; you just need the Tor Browser, which connects you to the Tor network where .onion websites live. However, you should be very careful where you go and what you do there. To help you out, we’ll give you some safety tips as well.

1. Turn on a VPN: Although a VPN isn’t required, it’s an important layer of protection on the dark web. A VPN masks your IP address from potentially malicious Tor entry nodes and helps safeguard your data on shared or unsecured networks, such as public Wi-Fi. It also prevents anyone else on your network, like a hacker or cybersnooper, from seeing what you’re doing.

2. Download the Tor Browser: Only download Tor from the official site, torproject.org. It is available for Windows, Mac, Linux, and even Android. On iOS, you’ll have to use the Onion Browser, which is a decent alternative (it encrypts your data just like Tor), but not as private. Downloading a fake version can open you up to serious cyberattacks.

3. Open Tor and connect: Click Connect to launch the Tor network. Within a few seconds, you should be connected and ready to browse.

4. Adjust the browser settings: Although the Tor Browser is designed with anonymity in mind, you should still adjust the settings to maximize your privacy. Do not maximize the browser window, as that can reveal unique details about your system. However, you should leave features like NoScript enabled.

5. Start browsing: Use .onion links to visit dark web sites. Search engines like Ahmia or directories like The Hidden Wiki can help you find legitimate sites. You can also access privacy-focused services like the DuckDuckGo onion version or trusted media outlets with onion addresses.

Dark Web Browsers

To reach .onion sites, you’ll need a browser that works with the Tor network. Here are the main options:

  • Tor Browser: The most secure and widely used dark web browser. Available for Windows, Mac, Linux, and Android.
  • Onion Browser: An iOS alternative to Tor. It encrypts traffic but lacks some of the advanced privacy protections found in Tor Browser.
  • Brave Browser: Includes optional Tor integration in private windows, but it’s not as strong or reliable as using Tor Browser directly.
  • I2P: Runs on its own anonymity network, separate from Tor, with hidden sites that use the .i2p domain.
  • Freenet: Similar to I2P above, Freenet is its own dark web ecosystem with separate content from Tor.

Dark Web Search Engines

Because Google and Bing don’t index onion sites, you’ll need dedicated search engines to navigate the dark web. A few well-known ones make finding content easier, though quality and safety can vary.

  • Ahmia: One of the most trusted dark web search engines, Ahmia indexes .onion sites but filters out illegal content where possible. The interface is clean and familiar, which makes it a great starting point for people new to the dark web.
  • DuckDuckGo (Onion Version): Known for its privacy-friendly approach, DuckDuckGo also has an official .onion site. It lets you search both surface web and dark web content without leaving the Tor network. This makes it one of the safest and most straightforward ways to search the web privately.
  • VormWeb: Focused on genuine news, chat, communities, forums, and marketplaces, VormWeb puts an emphasis on quality. It splits its results into three categories: verified, warning, and risk, so you can quickly identify the risk associated with any given result. Verified results are legitimate and scam-free.
  • Torch: This is one of the oldest and largest dark web search engines. It claims to index millions of onion sites, though many results lead to dead links or scams. Still, it’s a useful resource for uncovering less common or obscure sites, as long as you browse carefully.
  • Onion.live: Offers real-time monitoring of .onion links to ensure sites in results pages are accessible and relevant. The platform is designed specifically with security, privacy, and reliability in mind.

Risks of Using the Dark Web

Here are the main risks you should keep in mind before exploring the dark web:

  • Scams and fraud: Because anonymity makes it nearly impossible to verify sellers, many marketplaces and services are set up purely to steal money. Offers for cheap electronics, miracle investments, or “guaranteed” Bitcoin doubling schemes are almost always designed to trick new visitors.  
  • Malware: Files shared on the dark web often contain malicious software, including spyware, trojans, or ransomware. Even something that looks harmless, like a PDF or image file, could be weaponized. Opening one on your regular system could expose your personal data or lock you out of your device entirely.
  • Active law enforcement monitoring: Global agencies track dark web markets, forums, and illegal communities. Some even run undercover operations or set up “honeypot” sites to catch criminals. While just browsing isn’t a crime, participating in these spaces or even showing up on the wrong forum can draw unwanted attention.
  • Incomplete anonymity: The Tor network is powerful, but it’s not flawless. Using an outdated browser, ignoring privacy settings, or revealing personal details by mistake can undo the protections Tor provides. In some cases, attackers may try to deanonymize users by controlling certain network nodes or exploiting browser vulnerabilities.
  • Identity leaks: If you log into accounts, reuse email addresses, or share too much personal information, you risk exposing yourself. Many scams are designed to harvest logins and passwords that can then be resold or reused in cyberattacks.

⚠️ Disclaimer: The dark web contains both legal and illegal content. This article is provided for educational and informational purposes only; it does not encourage, promote, or condone accessing illegal material, engaging in unlawful transactions, or participating in any criminal activity. Visiting or interacting with illicit sites can result in severe consequences. Readers are strongly advised to stay within the bounds of the law at all times.

Dark Web Safety Tips

These risks don’t mean you need to avoid the dark web completely, but they do mean you should proceed with caution. Here are a few ways to stay safe while using the dark web:

  • Use a Tor-enabled browser: To safely access .onion sites, stick with Tor Browser or Onion Browser. Never paste .onion links into Chrome, Safari, or other regular browsers because they don’t provide Tor’s protections and could expose your IP address.
  • Avoid random file downloads: Many dark web files contain malware. Even harmless-looking PDFs or images can contain dangerous code. Only download if you fully trust the source, and even then, consider opening files offline or in a protected space.
  • Don’t reveal any personal information: Always use a fake name or handle. Never use your real name, primary email, or any personal details when signing up for accounts or joining discussions. While Tor hides your IP on its own, pairing it with a trustworthy VPN can add another layer of protection by preventing your ISP from seeing that you’re using Tor. 
  • Be careful with links and promises: Ignore shady offers like free Bitcoin or miracle investments. Many of these are scams designed to steal your cryptocurrency or personal information.  
  • Stay alert for phishing attacks: Some dark web pages mimic legitimate services to trick you into entering passwords or wallet details. Double-check URLs carefully, and never log into anything unless you’re sure it is the real service.
  • Keep Tor updated: The Tor Browser is updated regularly to fix security flaws. If you ignore updates, you leave yourself open to attacks via vulnerabilities that have already been patched.
  • Optional advanced tools: If you are especially concerned about privacy, consider using a live operating system like Tails or setting up a virtual machine. These add more layers of protection, though for most users, Tor plus a VPN will be enough.

What to Do if Your Personal Data Is Leaked on the Dark Web

If you get an alert that your personal data, like an email address, password, phone number, or social security number, was found on the dark web, you don’t need to panic, but you should act fast.

  1. Start by identifying exactly what was leaked: An email alone might just bring more spam, but an SSN or credit card leak is far more serious.
  2. Immediately change affected passwords: Also change the password to any other accounts where you reused that password. 
  3. Set up two-factor authentication: This means important accounts like email, banking, and social media can benefit from an extra layer of security.
  4. Run a malware scan on your devices: This will detect keyloggers and other malware that could be the source of the data leak. Clean up any threats and reset passwords again if needed.
  5. Check your bank and credit card statements closely: This is especially important if any financial information or your SSN was leaked. Consider freezing your credit to prevent new accounts from being opened in your name.
  6. For phone number leaks, add a security PIN: This prevents SIM swapping, where cybercriminals use your phone number to make unauthorized calls or send texts. 
  7. Secure your primary email: Use a strong, unique password and set up two-factor authentication. Since your email is the key to resetting other accounts, it’s often the first target after a leak.
  8. Stay on alert for phishing attempts. Scammers often use leaked info to craft convincing fake emails or texts that may use your name or reference other details like your phone number. These can be used to harvest more personal information or trick you into sending money.

⚠️ Unfortunately, once your data appears on the dark web, there’s no reliable way to erase it. However, if you act quickly by changing passwords, canceling cards, and using monitoring or identity protection services, you can make that stolen information far less valuable to criminals and protect yourself from further harm.

FAQ

Is the dark web illegal?

The dark web itself is not illegal in most countries. Using tools like Tor or visiting privacy-focused websites can be perfectly lawful, and in some cases, the dark web is used by journalists, researchers, and activists for legitimate purposes. However, engaging in illegal activities is against the law regardless of where it takes place. Laws vary by jurisdiction, so readers should always check their local regulations before attempting to access the dark web.

How can I access the dark web?

You can access the dark web using the Tor Browser, which connects you to .onion sites that aren’t available through regular browsers. Make sure to follow proper safety practices to protect your privacy and security: keep your software updated, use a VPN, avoid downloading files or clicking unknown links, and never engage in illegal activity.

How can you find out if your info is on the dark web?

You can use dark web monitoring services or free tools like haveibeenpwned.com to check if your email, passwords, or other personal data have appeared in known dark web data breaches or dumps.

How do I delete dark web data?

There’s no way to delete personal data once it is circulating on the dark web. Your best option is to take steps to make sure your information is useless to criminals. For example, it’s a good idea to change your passwords, contact your financial institutions, freeze credit, and set up two-factor authentication.

Can dark web activity be tracked?

The Tor network provides strong anonymity, making tracking difficult, but it’s not perfect. Sophisticated attacks or mistakes can expose users. That’s why it’s best to always take additional privacy measures, such as using a VPN, and follow safe browsing practices.

What is on the dark web?

The dark web hosts a wide range of content, including whistleblower tools, privacy-focused platforms, anonymous communication services, political activism spaces, hacking forums, illicit markets, and even quirky personal sites or experimental projects.

What is the dark web actually used for?

People use the dark web for both good and bad, but generally speaking, it’s used for activities requiring a high level of anonymity. Activists, journalists, and privacy seekers use it for secure communication, bypassing censorship, or protecting their identities, while criminals may use it to network or sell stolen or illegal goods.

Is it bad if your phone number is on the dark web?

Yes, it can be risky. Cybercriminals may attempt phishing or SIM swap attacks. If your phone number is on the dark web or you suspect it is, you should set a security PIN with your cellular network, monitor for suspicious activity, and stay alert for scam messages or calls.

What should you do if your Social Security number is on the dark web?

Having your social security number leaked on the dark web requires immediate action. Place a freeze on your credit with all three major credit bureaus. Watch financial accounts closely, consider enrolling in identity protection, and report any suspicious activity to the authorities or the Federal Trade Commission.