The readable start was brute-forced
See how the BBC’s, DuckDuckGo’s and Facebook’s addresses start with their names? They generated keys by the million until one happened to begin that way. The rest of it can’t be chosen.
It’s the part of the internet a normal browser can’t open. Not a place, not one website and not mostly crime: a set of networks built to hide who’s talking to whom. Here’s how it actually works.
Nothing on this page links into the dark web. The onion addresses below are text to take apart, not links to follow.
Source: Tor Metrics, October 2026
People say “dark web” when they mean three very different things. Only the last one needs special software.
Everything a search engine can find: news, Wikipedia, shops, videos, this page. It feels like the whole internet, but it’s only the part that’s been indexed.
Everything behind a login, paywall or search box: your inbox, your bank, medical records, private cloud files. By far the biggest layer, and almost all of it is boring. You use it every day.
Sites deliberately hidden on overlay networks — Tor, I2P, Freenet (now Hyphanet) — that run on top of the normal internet. A normal browser can’t open them at all. It’s tiny compared to the layers above.
Deep ≠ dark. The famous iceberg picture, with the dark web as the giant part underwater, mixes the two up: the giant part is the deep web, and it’s mostly email.
Tor doesn’t make you invisible. It splits the job of knowing about you across three strangers, so none of them knows enough on their own.
Step 1 of 5
Tor Browser picks three relays and encrypts your request once for each, inside out: the exit’s layer first, then the middle’s, then the guard’s on the outside. Like an onion.
Tor builds a fresh circuit every ten minutes or so, and gives every site you visit its own, so your tabs can’t be tied together by sharing relays.
Onion addresses look like keyboard mash because they are a cryptographic key. There’s no DNS and no registrar: the address itself proves which server you reached.
Valid v3 address. The checksum matches the key.
See how the BBC’s, DuckDuckGo’s and Facebook’s addresses start with their names? They generated keys by the million until one happened to begin that way. The rest of it can’t be chosen.
A valid checksum only proves nobody mistyped it. Phishing clones are perfectly valid addresses too. They’re just someone else’s key.
The same privacy that protects a reporter’s source protects a drug market. That’s the uncomfortable part, and there’s no version of Tor that only works for the good guys.
People who need privacy
SecureDrop runs on onion services so whistleblowers can hand documents to newsrooms like The Guardian and The New York Times without revealing who they are.
Where news and social media are blocked, Tor — with bridges like Snowflake that disguise the connection — gets people onto the open web.
The BBC, The New York Times, Facebook, DuckDuckGo, Proton and even the CIA run official .onion sites.
Activists, abuse survivors hiding from someone who tracks them, researchers, and people who simply don’t want to be followed around by ads.
And why it’s infamous
Drugs, fake IDs and stolen goods sold for crypto. The big ones get seized every few years — Silk Road, AlphaBay, Hydra — and new ones replace them.
Leaked databases, passwords and card numbers, resold in bulk. This is why “check if your email was leaked” services exist.
Gangs post companies’ stolen files on onion sites to pressure them into paying.
Fake markets, phishing clones of real sites and fake “hitman” services. A big share of what’s there exists only to take your money.
Hiding your IP isn’t enough. Your browser describes itself to every site it opens, and the details together can be enough to pick you out of a crowd.
Read by your own browser, on this page. None of it is sent anywhere.
Tor Browser’s real trick isn’t hiding you, it’s making millions of people look exactly the same. That’s why the advice is never to install add-ons or resize things to taste: every tweak makes you a little more unique.
The strangest thing about the dark web’s history is who started it.
Takedowns
Paul Syverson, Michael Reed and David Goldschlag at the U.S. Naval Research Laboratory design onion routing to protect government communications.
Roger Dingledine and Nick Mathewson, with Syverson, release the first version of Tor — “The Onion Router”.
Tor becomes a nonprofit. The idea: a tool only the military used would be useless, because every user would obviously be military.
Work starts on a browser that does it all for you, so using Tor stops requiring a weekend of configuration.
The first big darknet market opens, with anonymous sellers paid in Bitcoin. “The dark web” becomes a headline.
The FBI arrests Ross Ulbricht in a San Francisco library. Months later, Snowden documents show the NSA complaining it can’t unmask Tor users at scale.
Facebook launches an official .onion address — one of the first big companies to do it.
AlphaBay and Hansa go down together. Dutch police had secretly run Hansa for a month first, collecting evidence.
The BBC follows The New York Times (2017) with an onion site, so readers in censored countries can reach them.
The old 16-character v2 addresses stop working. Only the longer, stronger 56-character v3 kind remain.
German police shut down Hydra, then the largest darknet market in the world.
The Tor Project and Tails, the amnesic operating system that runs from a USB stick, join forces.
President Trump pardons Ross Ulbricht after more than eleven years of a life sentence.
Heard another one? Email me
RealityThat’s the deep web — inboxes, databases, anything behind a login — being confused with the dark web. The dark web is a tiny corner, and many .onion addresses are short-lived or aren’t websites at all.
RealityIn most countries, including the US and the whole EU, it’s legal. What you do with it can be illegal, same as on the normal web. Some governments, like China, Russia and Iran, block or restrict it.
RealityIt hides your IP address. It doesn’t stop you logging into your own accounts, opening a file that phones home, or reusing a username. Most people who get caught make a mistake; the crypto rarely breaks.
RealityMost Tor traffic is people visiting ordinary websites privately. Onion services are a small slice of it, and plenty of those are newsrooms, email providers and search engines.
RealityTakedowns happen all the time: Silk Road, AlphaBay, Hansa, Hydra. Investigators use seized servers, infiltration, crypto tracing and old forum posts — not some magic Tor exploit.
RealityIt came out of the U.S. Naval Research Laboratory, and the Tor Project still gets part of its funding from government grants.
Opening Tor Browser is legal almost everywhere and won’t put a target on you. The risks are the ordinary internet’s, just sharper.
Fake “Tor” apps and bundles with malware exist, especially in app stores and on forums.
Signing into your real email or social account links the whole session to your name.
Every change makes you look different from everyone else, which is the opposite of what Tor is doing for you.
PDFs and documents can load things from the internet outside Tor and reveal your real IP.
Link lists are full of phishing clones that differ by a few characters. Bookmark real addresses; never trust a search result.
It turns off JavaScript everywhere, which blocks most of the ways a site could attack your browser.
Tor Browser is free, and the Tor Project is the only place you should download it from.