Learn Dark Web

Dark Web Explained

The dark web is a small, deliberately hidden part of the internet — reachable only with special software. It is widely misunderstood: part privacy tool, part marketplace, mostly myth. This hub explains what it actually is, how it works, and what the real risks are.

By Abdul Hannan · Published 2026-11-14 · Last updated 2026-11-14

What the dark web is

The dark web is a collection of websites that ordinary browsers and search engines cannot reach. They use .onion addresses and are built on the Tor network — a volunteer-run network that routes your connection through several relays so that no single relay knows both who you are and where you are going. To visit an onion site you need Tor Browser, the free browser published by the Tor Project.

It helps to keep three layers of the internet apart. The surface web is what search engines index: public websites, news, blogs. The deep web is everything search engines do not index — your email, your bank account, a company's internal wiki, an article behind a paywall. The dark web is a small part of the deep web: sites that are deliberately hidden and need Tor (or a similar network) to reach. Most of the deep web is ordinary, everyday content.

How big is the dark web? Nobody can count it reliably, and honest sources say so. The often-quoted figure that 90–95% of the internet is the deep web traces back to a 2001 estimate that was never a measurement — researchers have been correcting it for years. The dark web itself is much smaller than the headlines suggest: thousands of onion services, not millions. This site explains why the counts disagree instead of quoting one number as fact.

How Tor works, in brief

Tor protects privacy by separating knowledge. Your connection passes through three relays — entry, middle, exit — and each relay only knows its immediate neighbours. Your internet provider sees that you are using Tor, but not what you are doing. The website you visit sees the exit relay, not your real address. Onion services go one step further: the connection never leaves the Tor network at all, so there is no exit relay to observe.

That design has limits, and they matter. Tor hides your address, not your behaviour: log in to an account, download a file, or run scripts, and you can still be identified. A compromised or malicious exit relay can see unencrypted traffic leaving the network. And Tor is slow by design — three hops, often on volunteer hardware. The full technical explanation, with a visual circuit walkthrough, is in our Tor Education section.

Is the dark web illegal?

The short answer: the technology is legal in most countries; the activity decides. Running Tor, reading onion sites, and using privacy tools is legal in the United States, the United Kingdom, the European Union and most other countries. Buying illegal drugs, stolen data, weapons or hacking services is a crime — online or offline, dark web or not.

A few countries restrict or block Tor outright, and laws change. If you live somewhere with internet restrictions, check your local law before using Tor at all. This site is not legal advice and cannot tell you what is legal where you live.

What is actually on the dark web?

The honest answer is mixed, and anyone who tells you it is all one thing is selling you something. Documented, legal uses include privacy-focused email and chat, whistleblowing platforms used by journalists, libraries and archives, and forums for people living under censorship. Illegal marketplaces exist too — researchers and law enforcement report them regularly — but they are one part of a much smaller ecosystem than the headlines imply.

This site does not link to onion marketplaces, does not publish directories of onion sites, and does not tell you where to buy anything illegal. What it does is explain the technology, the risks, and the law, so you can make informed decisions.

Common myths, corrected

• Myth: "The dark web is 90% of the internet." No. That figure comes from a 2001 estimate, not a measurement. The deep web is large; the dark web is a small part of it.
• Myth: "Tor makes you completely anonymous." No. Tor hides your address from websites. Your behaviour, logins and downloads can still identify you.
• Myth: "Everyone on the dark web is a criminal." No. Journalists, researchers, activists and ordinary privacy seekers use the same tools, for lawful reasons.
• Myth: "You need a VPN before Tor to be safe." Not necessarily. A VPN changes who sees what — it does not automatically make Tor safer, and in some setups it makes things worse. See our Online Privacy hub.

Where to go next

Start with the technology, then the privacy picture, then the safety rules. The full beginner guides — what the dark web is, how Tor works, onion routing, and the myths in depth — are being written now and will appear here as they are published and checked.

Frequently asked questions

Is the dark web illegal?

No — the technology itself is not illegal in most countries. Tor and onion services are legal tools. What matters is what you do with them: buying drugs, stolen data or weapons is illegal, online or offline. Laws differ by country, and this page is education, not legal advice.

What is the difference between the deep web and the dark web?

The deep web is everything on the internet that search engines do not index — your email inbox, online banking, paywalled articles, private documents. The dark web is a small part of the deep web: sites that need special software, usually Tor Browser, to reach. Most of the deep web is ordinary, everyday content.

Can you be tracked on Tor?

Tor hides your real IP address from the sites you visit, but it does not make you invisible. The website you visit still sees the Tor exit relay, not you — but logging in, downloading files, or enabling scripts can still identify you. Tor is a privacy tool, not a guarantee of anonymity.

Is Tor Browser safe to download?

Yes, when you get it from the official source only: torproject.org. Download the installer for your system and, on desktop, verify its .asc signature against the Tor Browser Developers key before running it. Never download Tor Browser from a third-party site or a search ad.