400 - Bad request
The proxy server can return this error code if the request did not contain a host to connect to or there was a generic error when parsing the HTTP request. Make sure your request is correctly formed; include the URL in the request, and then try again.
401 - Unauthorized error
The proxy server returns this error when your request fails authentication on the target website. Make sure that you provide correct authentication information for the website alongside the request.
403 - Forbidden
The proxy server returns this error when its access to the target website has been blocked. Please try using a different proxy server location or ports.
407 - Proxy Authentication Required
Request lacks proxy authentication information, or username or password is invalid. Include Proxy authentication header in your request and make sure your username and password are correctly formed and then try again.
500 - Internal Server Error
The proxy server has encountered an internal error. Retry request at a later time.
502 - Bad Gateway
The proxy server received an invalid response from the upstream server. Retry request.
504 - Gateway Timeout
The proxy server did not receive a response from the upstream server in time. Retry request.
522 - CONNECT Timeout
Custom HTTP status code - this means that the proxy connection timed out during the CONNECT phase.
525 - No Exit Found
Custom HTTP status code means proxy was unable to find an exit node that satisfies the request. Change request filter parameters or try again at a later time.
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Updated 22 days ago