This article addresses the question “how to import nodes into sing-box“: it is suitable for users who have just installed a sing-box client, walks through subscription import and manual import step by step, and explains how the results after import relate to IP, DNS, and browser environment checks, so you can tell whether the connection is actually working.
1. What to prepare before importing nodes
sing-box itself is a general-purpose proxy core. Client interfaces on different systems vary slightly; for example, graphical clients on Android, Windows, and macOS may have different names, but the import logic is basically the same: get a subscription link or a single node link, then import it into the configuration.
- Prepare a usable sing-box client.
- Prepare node information: usually a subscription link, or a single link such as vless, vmess, trojan, or ss.
- Make sure your device time is correct, since an incorrect system time may cause TLS connection failures.
- If you are using this site’s free nodes, it is recommended to copy the subscription or node link updated for the current day first.
2. Import nodes using a subscription link
Subscription import is suitable for ordinary users and is also more convenient for later updates. The general steps are as follows:
- Open the sing-box client and go to the “Configuration,” “Profiles,” or “Subscription” page.
- Click “Add,” “Import,” or “New Profile.”
- Select “Import from URL” or “Remote profile.”
- Paste the subscription link. For the name, you can enter “freevpn” or a custom name.
- After saving, click “Update Subscription” and wait for the client to fetch the nodes.
- Return to the main screen, select a node, and click Start or Connect.
If the list is empty after import, first check whether the link is complete, especially making sure you did not miss the opening https://. Some clients do not support certain subscription formats, so you can try copying a single node link for manual import.
3. Manually import a single node
If you only have one vless://, trojan://, or ss:// link, you can use manual import. After copying the complete node link, choose “Import from clipboard” or “Import from clipboard” in the client. Once the import succeeds, the client will usually generate a local configuration file. At this point, do not rush to change advanced parameters; connect first and test directly.
Note that sing-box is quite sensitive to protocol parameters. Missing items such as reality, public key, server name, or transport method can all cause failure. Ordinary users are not advised to manually split apart or modify the configuration unless you clearly understand the meaning of each item.
4. How to read IP, DNS, and the browser environment
After importing the node and connecting, it is recommended to check three things in order: exit IP, DNS, and the browser environment. Open an IP checking website; if the displayed region is not your local network location, the proxy is most likely working. If the IP has changed but DNS still shows your local ISP, there may be a DNS leak. You can enable remote DNS, rule-based DNS, or use the client’s recommended configuration.
Browser environment checks that show language, time zone, WebRTC, system fonts, and so on are not determined entirely by sing-box. sing-box mainly affects the network exit and DNS, while browser fingerprinting is also related to browser settings, extensions, and the system region. Therefore, do not judge only by a single check item; make a combined assessment.
5. Quick troubleshooting for connection failures
- Subscription cannot be updated: switch networks and try again, and confirm that the link has not expired or been cut off by a line break.
- Node connection times out: switch to another node, or change from Wi-Fi to mobile data for testing.
- It connects but webpages will not open: check whether the system proxy is enabled and whether the browser is using a separate proxy extension.
- Some websites will not open: try global mode, or turn off DNS over HTTPS in the browser and test again.
Summary: for importing nodes into sing-box, using a subscription URL is the most recommended method because it is simple and can be updated; a single node is better suited for temporary testing. After importing, do not only look at “Connected”—you should also check the IP, DNS, and browser environment to confirm whether the proxy is truly working.