After configuring the proxy, the first thing is not to run the formal task immediately, but to verify whether the proxy is really effective. This article describes two common testing methods: browser testing and cURL testing.

Method 1: Browser test

1. Open the browser or proxy extension and fill in the proxy settings with the host, port, username and password provided by MaskProxy.
2. After saving the configuration, open an IP query page to view the current exit IP and region.
3. If the IP displayed on the page has changed, it means that the browser request is being forwarded through the proxy.

If the account and password input box pops up in the browser, it usually means that the proxy server can be connected, but the authentication information is not saved correctly. Please recheck the username, password and proxy type.

Method 2: cURL Test

cURL is more suitable for troubleshooting technical problems because it can directly display connection errors. The following is an example of HTTP proxy:

curl -x http://用户名:密码@主机:端口 https://api.ipify.org

If you use SOCKS5, you can change it to socks5 or socks5h according to the tool support:

curl -x socks5h://用户名:密码@主机:端口 https://api.ipify.org

How to judge the result

• Return an IP: The proxy is connected, continue to check whether the region meets expectations.
• Connection timeout: Check local network, firewall, ports, protocols, and target site accessibility.
• IP region is inconsistent: cross-confirm with multiple detection sources, and note that there may be delays in different databases.

It is recommended to do a light test every time after modifying the proxy parameters. In this way, configuration errors can be discovered before the official task starts, reducing invalid requests and troubleshooting costs.