Hypertext Transfer Protocol (HTTP) status codes


This is a list of Hypertext Transfer Protocol (HTTP) response status codes. Status codes are issued by a server in response to a client's request made to the server.

The Internet Assigned Numbers Authority (IANA) maintains the official registry of HTTP status codes.

  • 1xx (Informational) These are provisional responses intended to be used while the server continues to process the request. They are seldom used.
  • 2xx (Success) Codes used when things work as they are supposed to. Different success codes are returned based on what, specifically, the request was attempting to do.
  • 3xx (Redirection) Codes used to tell the client to look for the requested resource somewhere else.
  • 4xx (Client Error) These codes tell the client that it did something wrong.
  • 5xx (Server Error) Code for when something on the server isn't working as expected.
Status code Definitions
100 Continue
101 Switching Protocols
102 Processing
200 OK
201 Created
202 Accepted
203 Non-Authoritative Information
204 No Content
205 Reset Content
206 Partial Content
207 Multi-Status
208 Already Reported
226 IM Used
300 Multiple Choices
301 Moved Permanently
302 Found
303 See Other
304 Not Modified
305 Use Proxy
306 Switch Proxy
307 Temporary Redirect
308 Permanent Redirect
400 Bad Request
401 Unauthorized
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
418 I'm a teapot
419 Authentication Timeout
420 Method Failure
422 Unprocessable Entity
423 Locked
424 Method Failure
425 Unordered Collection
426 Upgrade Required
428 Precondition Required
429 Too Many Requests
431 Request Header Fields Too Large
444 No Response
449 Retry With
450 Blocked by Windows Parental Controls
451 Unavailable For Legal Reasons
494 Request Header Too Large
495 Cert Error
496 No Cert
497 HTTP to HTTPS
499 Client Closed Request
500 Internal Server Error
501 Not Implemented
502 Bad Gateway
503 Service Unavailable
504 Gateway Timeout
505 HTTP Version Not Supported
506 Variant Also Negotiates
507 Insufficient Storage
508 Loop Detected
509 Bandwidth Limit Exceeded
510 Not Extended
511 Network Authentication Required
598 Network read timeout error
599 Network connect timeout error