Smartproxy Help Center

Welcome to the Smartproxy developer hub. You'll find comprehensive guides and documentation to help you start working with proxies as quickly as possible, as well as support if you get stuck. Let's jump right in!


HTTP(S) Error codes

400 - Bad requestProxy 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 HTTP request. Make sure your request is correctly formed and make sure to include URL in the request then try again.
401 - Unauthorized errorProxy 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 - ForbiddenProxy 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 RequiredRequest 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 ErrorProxy server has encountered an internal error. Retry request at a later time.
502 - Bad GatewayProxy server received an invalid response from the upstream server. Retry request.
504 - Gateway TimeoutProxy server did not receive a response from the upstream server in time. Retry request.
522 - CONNECT TimeoutCustom HTTP status code - this means that the proxy connection timed out during the CONNECT phase.
525 - No Exit FoundCustom HTTP status code - this means proxy was unable to find an exit node which satisfies the the request. Change request filter parameters or try again at a later time.


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Updated 3 months ago

HTTP(S) Error codes

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