The following is a list of HTTP response status codes and standard associated phrases, intended to give a short textual description of the status. These status codes are specified by RFC 2616, along with additional, unstandardized status codes sometimes used on Web.

The first digit of the status code specifies one of five classes of response.

1xx Informational

Request received, continuing process.

• 100: Continue
• 101: Switching Protocols

2xx Success

The action was successfully received, understood, and accepted.

• 200: OK
• 201: Created
• 202: Accepted
• 203: Non-Authoritative Information
• 204: No Content
• 205: Reset Content
• 206: Partial Content

3xx Redirection

The client must take additional action to complete the request.

• 300: Multiple Choices
• 301: Moved Permanently
• 302: Moved Temporarily (HTTP/1.0)
• 302: Found (HTTP/1.1)
  • see 302 Google Jacking
• 303: See Other (HTTP/1.1)
• 304: Not Modified
• 305: Use Proxy
  • Many HTTP clients (such as Mozilla and Internet Explorer) don't correctly handle responses with this status code.
• 306: (no longer used, but reserved)
• 307: Temporary Redirect

4xx Client Error

The request contains bad syntax or cannot be fulfilled.

• 400: Bad Request
• 401: Unauthorized
  • Similar to 403/Forbidden, but specifically for use when authentication is possible but has failed or not yet been provided. See basic authentication scheme and digest access authentication.
• 402: Payment Required
• 403: Forbidden
• 404: Not Found
• 405: Method Not Allowed
• 406: Not Acceptable
• 407: Proxy Authentication Required
• 408: Request Timeout
• 409: Conflict
• 410: Gone
• 411: Length Required
• 412: Precondition Failed
• 413: Request Entity Too Large
• 414: Request-URI Too Long
• 415: Unsupported Media Type
• 416: Requested Range Not Satisfiable
• 417: Expectation Failed
• 449: Retry With
  • A Microsoft extension: The request should be retried after doing the appropriate action.

5xx Server Error

The server failed to fulfill an apparently valid request.

• 500: Internal Server Error
• 501: Not Implemented
• 502: Bad Gateway
• 503: Service Unavailable
• 504: Gateway Timeout
• 505: HTTP Version Not Supported
• 509: Bandwidth Limit Exceeded
  • This status code, while used by many servers, is not an official HTTP status code.

See also

• HTTP
• URL
• HTML
• XHTML
• World Wide Web Consortium

External links

• Official W3C HTTP status code specification

HTTP

Liste des codes HTTP | HTTP-statuscodes | Kod odpowiedzi HTTP | Lista över HTTP-statuskoder