Common HTTP Status Codes
2xx (Successful) indicates that the request was successfully processed.
200 (OK) The server successfully processed the request. Typically, this means the server provided the requested webpage.
201 (Created) The request was successful, and the server created a new resource.
202 (Accepted) The server accepted the request but has not yet processed it.
203 (Non-Authoritative Information) The server successfully processed the request, but the returned information may come from another source.
204 (No Content) The server successfully processed the request but did not return any content.
205 (Reset Content) The server successfully processed the request but did not return any content.
206 (Partial Content) The server successfully processed a partial GET request.
3xx (Redirection) indicates that further action is needed to complete the request. Typically, these status codes are used for redirection.
300 (Multiple Choices) The server can perform multiple operations for the request. The server can select one operation based on the requester (user agent) or provide a list of operations for the requester to choose from.
301 (Moved Permanently) The requested webpage has been permanently moved to a new location. When the server returns this response (for GET or HEAD requests), it automatically redirects the requester to the new location.
302 (Found) The server is currently responding to the request from a different location, but the requester should continue to use the original location for future requests.
303 (See Other) The server returns this code when the requester should use a separate GET request to retrieve the response from a different location.
304 (Not Modified) The requested webpage has not been modified since the last request. When the server returns this response, it does not return the webpage content.
305 (Use Proxy) The requester can only access the requested webpage through a proxy. If the server returns this response, it also indicates that the requester should use the proxy.
307 (Temporary Redirect) The server is currently responding to the request from a different location, but the requester should continue to use the original location for future requests.
4xx (Client Error) These status codes indicate that there may be an error with the request, hindering the server’s processing.
400 (Bad Request) The server does not understand the syntax of the request.
401 (Unauthorized) The request requires authentication. The server may return this response for webpages that require login.
403 (Forbidden) The server refuses the request.
404 (Not Found) The server cannot find the requested webpage.
405 (Method Not Allowed) The method specified in the request is not allowed.
406 (Not Acceptable) The requested content characteristics cannot be used to respond to the request.
407 (Proxy Authentication Required) This status code is similar to 401 (Unauthorized) but specifies that the requester should authorize the use of a proxy.
408 (Request Timeout) The server timed out waiting for the request.
409 (Conflict) The server encountered a conflict while processing the request. The server must include information about the conflict in the response.
410 (Gone) The server will return this response if the requested resource has been permanently deleted.
411 (Length Required) The server does not accept requests without a valid content-length header field.
412 (Precondition Failed) The server did not meet one of the preconditions set by the requester in the request.
413 (Payload Too Large) The server cannot process the request because the payload is too large, exceeding the server’s processing capacity.
414 (URI Too Long) The requested URI (usually a URL) is too long for the server to process.
415 (Unsupported Media Type) The format of the request is not supported by the requested page.
416 (Range Not Satisfiable) The server will return this status code if it cannot provide the requested range.
417 (Expectation Failed) The server did not meet the requirements of the “Expect” request header field.
5xx (Server Error) These status codes indicate that the server encountered an internal error while trying to process the request. These errors may be due to issues with the server itself, rather than errors in the request.
500 (Internal Server Error) The server encountered an error and could not complete the request.
501 (Not Implemented) The server does not have the capability to fulfill the request. For example, this code may be returned when the server cannot recognize the request method.
502 (Bad Gateway) The server received an invalid response from an upstream server while acting as a gateway or proxy.
503 (Service Unavailable) The server is currently unable to handle the request (due to overload or maintenance). Typically, this is just a temporary status.
504 (Gateway Timeout) The server, while acting as a gateway or proxy, did not receive a timely response from the upstream server.
505 (HTTP Version Not Supported) The server does not support the HTTP protocol version used in the request.