洋葱服务 (旧名为“隐身服务”) 是一种只能透过洋葱路由网络访问的网络服务 (例如网站)。
洋葱服务提供了许多架设在非私密网络空间之普通网站所没有的优势：
洋葱服务的真实网络地址与地理位置信息被隐藏，因此很难过滤审查通往该站点之的网络连接，也很难找出该网站管理员的真实身份。
- Tor 用户与洋葱服务之间所有的流量都是端到端加密的，所以你不必担心 HTTPS 连接方面的问题。
- 洋葱服务的网址是为自动生成，因此网站的架设者或管理员无需另行购买网络域名。其网址皆是以 .onion 结尾的，此等设计可以让洋葱路由系统确保所有网络连接都通往正确的站点，并且其连接数据未被窜改。
如何访问洋葱服务
Just like any other website, you will need to know the address of an onion service in order to connect to it. An onion address is a string of 56 mostly random letters and numbers, followed by ".onion".
When accessing a website that uses an onion service, Tor Browser will show in the URL bar an icon of an onion displaying the state of your connection: secure and using an onion service.
You can learn more about the onion site that you are visiting by looking at the Circuit Display.
Another way to learn about an onion site is if the website administrator has implemented a feature called Onion-Location.
Onion-Location is a non-standard HTTP header that websites can use to advertise their onion counterpart.
If the website that you are visiting has an onion site available, a purple suggestion pill will prompt at the URL bar in Tor Browser displaying ".onion available".
When you click on ".onion available", the website will be reloaded and redirected to its onion counterpart.
To prioritize an onion site version of a website, you can enable automatic Onion-Location redirects.
Click on hamburger menu (≡), go to Preferences (or Options on Windows), click on Privacy & Security, and in the Onion Services section look for the entry "Prioritize .onion sites when known." and check the option "Always".
Or, if you're already running Tor Browser, you can copy and paste this string in a new tab: about:preferences#privacy and change this setting.
洋葱服务验证
An authenticated onion service is a service like an onion site that requires the client to provide an authentication token before accessing the service.
As a Tor user, you may authenticate yourself directly in the Tor Browser.
In order to access this service, you will need access credentials from the onion service operator.
When accessing an authenticated onion service, Tor Browser will show in the URL bar an icon of a little gray key, accompanied by a tooltip.
Enter your valid private key into the input field.
洋葱服务错误
If you can't connect to an onion site, Tor Browser will provide a specific error message informing why the website is unavailable.
Errors can happen in different layers: client errors, network errors or service errors.
Some of these errors can be fixed by following the Troubleshooting section.
The table below shows all the possible errors and which action you should take to solve the issue.
| 代码 |
错误标题 |
简短说明 |
| XF0 |
Onion site Not Found |
The most likely cause is that the onion site is offline or disabled. Contact the onion site administrator. |
| XF1 |
Onion site Cannot Be Reached |
The onion site is unreachable due to an internal error. |
| XF2 |
Onion site Has Disconnected |
The most likely cause is that the onion site is offline or disabled. Contact the onion site administrator. |
| XF3 |
Unable to Connect to Onion site |
The onion site is busy or the Tor network is overloaded. Try again later. |
| XF4 |
Onion site Requires Authentication |
Access to the onion site requires a key but none was provided. |
| XF5 |
Onion site Authentication Failed |
The provided key is incorrect or has been revoked. Contact the onion site administrator. |
| XF6 |
Invalid Onion site Address |
The provided onion site address is invalid. Please check that you entered it correctly. |
| XF7 |
Onion site Circuit Creation Timed Out |
Failed to connect to the onion site, possibly due to a poor network connection. |
疑难解答
If you cannot reach the onion service you requested, make sure that you have entered the onion address correctly: even a small mistake will stop Tor Browser from being able to reach the site.
If you are still unable to connect to the onion service after verifying the address, please try again later. There may be a temporary connection issue, or the site operators may have allowed it to go offline without warning.
If the onion service you are trying to access consists of a string of 16 characters (V2 format), this type of address is being deprecated.
You can also test if you are able to access other onion services by connecting to DuckDuckGo's Onion Service.
