At present, Fast Link Checker supports the following types of proxy servers: HTTP, SOCKS4, SOCKS4A and SOCKS5.

To change the settings of a proxy server, open the Connection tab in the Settings dialog and check the Use a proxy server option, after that select the type of the proxy server, enter its address and port number. If your proxy server requires authentication, check the Use authentication for the server option and enter your username and password in the corresponding input fields.