This code indicates that the internal server is misconfigured. This error occurs when the server does not support the HTTP protocol version used in the browser request. The server did not receive a timely response from another server acting as a gateway or proxy and could not complete the client's request within the given time frame. When this code appears, Google understands that you're having a temporary problem and won't penalize your site or de-index your pages. The server was unable to process the request due to temporary server overload or maintenance.

This code indicates that a server acting as a gateway or proxy received an invalid response from an upstream server. This code usually implies future availability. The server running the site does not understand or support the HTTP method sent by the client.

This is a generic error message that indicates a problem with the website server, but the server cannot specify the specific problem. The following is a list of 5xx server error codes and a brief description of what they mean. Most of the time, the problem comes from an overly congested server, a network error, a problem with the webserver, or an error executing the HTTP request. 5xx codes occur when the server does not support the functionality required to handle visitor requests.