Am I Using Tor? Free Online Tor Check

How Is Tor Usage Detected?

Tor exit relays are public by design. The Tor Project publishes the current exit addresses as a plain text bulk exit list and as a DNS based service called TorDNSEL, so any website can recognize that a request arrived from the Tor network.

A Tor check works by comparing your visible IP address against that Tor exit node IP database. If your IP matches a known exit relay, your traffic is coming through Tor. If it does not match, your traffic is not arriving from a known Tor exit: you may be connecting directly, through a VPN or proxy, or through an exit relay too new to appear in the list. Helping users verify their own Tor usage goes back to an early Tor design proposal by Steven J. Murdoch (proposal 131).

List based detection has limits: a brand new exit relay may not appear in a snapshot yet, and cached lists can lag behind the live network. Running two independent checks, this page plus the official checker, gives you the most reliable answer.

How Does This Tor Checker Work?

• Open the page: the check starts automatically. There is nothing to configure or submit.
• IP lookup: the page sends one request to ipapi.is, an independent IP intelligence service that tracks known Tor exit node IPs and derives your public IP from the request itself.
• Read the verdict: a green You are using Tor or red You are not using Tor result appears in the status box within seconds.
• Re-run anytime: refresh the page to test again after switching networks or opening Tor Browser.

The check is a single request to the lookup service, which determines your public IP from that request. This page reads only the Tor verdict from the response, keeps it in memory, and discards it when you leave; how ipapi.is handles requests is described in its own privacy policy. To see the address being evaluated, use the What Is My IP Address tool.

How This Tor Check Compares to check.torproject.org

The Tor Project runs the official checker at check.torproject.org. Inside Tor Browser it reports “Congratulations. This browser is configured to use Tor.” Outside Tor it reports “Sorry. You are not using Tor.” along with your visible IP address. Because the same organization publishes the exit list itself, it is the authoritative answer.

This page complements it: the check runs the moment you land, uses an independently maintained exit node database, and sits next to related network diagnostics such as the DNS Propagation Checker. When the two tools agree, you can be confident in the result.

Is Tor 100% Anonymous?

No tool makes you perfectly anonymous, and the Tor Project says exactly that: it is generally impossible to have perfect anonymity, even with Tor. A standard Tor circuit passes through three relays, a guard, a middle, and an exit, and no single relay ever sees both who you are and what you are visiting. What the network cannot fix is what happens at either end:

• Signing in: log in to a personal account over Tor and the site still knows who you are, even though it cannot see your location.
• Plugins and outdated browsers: Tor Browser blocks plugins such as Flash because they can be manipulated into revealing your real IP address. Old browser versions carry the same risk.
• End to end correlation: an observer who can watch both your connection and the destination can match traffic timing, a documented limitation of onion routing.
• OpSec mistakes: reusing usernames, posting identifying details, or mixing anonymous and personal sessions undoes the network protection. Security researchers call this operational security, or OpSec.

What are the Use Cases?

• Privacy verification: confirm Tor Browser is actually protecting you before researching or communicating about sensitive topics.
• QA and web testing: many sites throttle or block known exit nodes, so check whether your test session exits through Tor, then validate region dependent flows with TestMu AI geolocation testing on real browsers.
• Security reviews: fraud and abuse teams verify how their own products respond to traffic that arrives from anonymity networks.
• Censorship circumvention: confirm your connection really goes through Tor before relying on it inside a restricted network.

Frequently Asked Questions

How do I check if I am connected to Tor?

Load this page and read the status box: it compares your public IP address against known Tor exit nodes and shows a color coded verdict in seconds. For a second opinion, open the official Tor Project checker at check.torproject.org, which confirms whether your browser is configured to use Tor.

Is Tor 100% anonymous?

No. The Tor Project states that perfect anonymity is generally impossible, even with Tor. The network hides your IP address and route, but signing in to accounts still identifies you, browser plugins can leak your address, and an observer watching both ends of a connection can correlate traffic timing.

Is browsing with Tor illegal?

Using Tor is legal in most countries. Some governments, however, block or restrict access to the Tor network, and anything that is illegal without Tor remains illegal over Tor. If you are unsure, check the rules that apply in your country before relying on it.

Can the FBI track Tor Browser users?

In publicly documented cases, investigators identified Tor users through browser exploits and operational security mistakes, such as logging in to personal accounts or reusing usernames, rather than by breaking the encryption of the Tor network. Keeping Tor Browser updated and separating anonymous sessions from personal identities reduces those risks.

Why would I want to use Tor?

Using Tor enhances your online privacy by hiding your real IP address, making it much harder for websites and third parties to track your browsing activity. It also allows access to .onion sites, which are typically used for anonymous, secure, and privacy-focused communication.

What are .onion sites?

“.onion” sites are websites that are only accessible through the Tor network. These sites are often used for secure, private browsing and are not indexed by traditional search engines. They provide a higher level of anonymity and are commonly used for discussions, information-sharing, and accessing services in privacy-conscious communities.

What should I do if I’m not using Tor but want to?

If you're not currently using Tor but would like to, download and install Tor Browser from the official Tor Project website. It routes the browser's own traffic through the Tor network; other applications on your device are not protected and connect as usual.

Can I use this tool to check if someone else is using Tor?

This tool checks only your own connection. It cannot check if another person is using Tor. However, you can use it to verify that your own traffic exits through the Tor network.

Run the check above whenever you switch networks, then continue your connection diagnostics with the Port Checker and SSL Certificate Checker. And when you need to see how your own website behaves for visitors from other networks and regions, test it on TestMu AI real device cloud with 10,000+ real devices and 3000+ browsers.