Hypertext Transfer Protocol (HTTP) Status Code Registry
- Last Updated
- 2022-06-08
- Available Formats
-
XML
HTML
Plain text
Registry included below
HTTP Status Codes
- Registration Procedure(s)
-
IETF Review
- Reference
- [RFC9110, Section 16.2.1]
- Note
-
1xx: Informational - Request received, continuing process 2xx: Success - The action was successfully received, understood, and accepted 3xx: Redirection - Further action must be taken in order to complete the request 4xx: Client Error - The request contains bad syntax or cannot be fulfilled 5xx: Server Error - The server failed to fulfill an apparently valid request
- Available Formats
-
CSV
Value | Description | Reference |
---|---|---|
100 | Continue | [RFC9110, Section 15.2.1] |
101 | Switching Protocols | [RFC9110, Section 15.2.2] |
102 | Processing | [RFC2518] |
103 | Early Hints | [RFC8297] |
104-199 | Unassigned | |
200 | OK | [RFC9110, Section 15.3.1] |
201 | Created | [RFC9110, Section 15.3.2] |
202 | Accepted | [RFC9110, Section 15.3.3] |
203 | Non-Authoritative Information | [RFC9110, Section 15.3.4] |
204 | No Content | [RFC9110, Section 15.3.5] |
205 | Reset Content | [RFC9110, Section 15.3.6] |
206 | Partial Content | [RFC9110, Section 15.3.7] |
207 | Multi-Status | [RFC4918] |
208 | Already Reported | [RFC5842] |
209-225 | Unassigned | |
226 | IM Used | [RFC3229] |
227-299 | Unassigned | |
300 | Multiple Choices | [RFC9110, Section 15.4.1] |
301 | Moved Permanently | [RFC9110, Section 15.4.2] |
302 | Found | [RFC9110, Section 15.4.3] |
303 | See Other | [RFC9110, Section 15.4.4] |
304 | Not Modified | [RFC9110, Section 15.4.5] |
305 | Use Proxy | [RFC9110, Section 15.4.6] |
306 | (Unused) | [RFC9110, Section 15.4.7] |
307 | Temporary Redirect | [RFC9110, Section 15.4.8] |
308 | Permanent Redirect | [RFC9110, Section 15.4.9] |
309-399 | Unassigned | |
400 | Bad Request | [RFC9110, Section 15.5.1] |
401 | Unauthorized | [RFC9110, Section 15.5.2] |
402 | Payment Required | [RFC9110, Section 15.5.3] |
403 | Forbidden | [RFC9110, Section 15.5.4] |
404 | Not Found | [RFC9110, Section 15.5.5] |
405 | Method Not Allowed | [RFC9110, Section 15.5.6] |
406 | Not Acceptable | [RFC9110, Section 15.5.7] |
407 | Proxy Authentication Required | [RFC9110, Section 15.5.8] |
408 | Request Timeout | [RFC9110, Section 15.5.9] |
409 | Conflict | [RFC9110, Section 15.5.10] |
410 | Gone | [RFC9110, Section 15.5.11] |
411 | Length Required | [RFC9110, Section 15.5.12] |
412 | Precondition Failed | [RFC9110, Section 15.5.13] |
413 | Content Too Large | [RFC9110, Section 15.5.14] |
414 | URI Too Long | [RFC9110, Section 15.5.15] |
415 | Unsupported Media Type | [RFC9110, Section 15.5.16] |
416 | Range Not Satisfiable | [RFC9110, Section 15.5.17] |
417 | Expectation Failed | [RFC9110, Section 15.5.18] |
418 | (Unused) | [RFC9110, Section 15.5.19] |
419-420 | Unassigned | |
421 | Misdirected Request | [RFC9110, Section 15.5.20] |
422 | Unprocessable Content | [RFC9110, Section 15.5.21] |
423 | Locked | [RFC4918] |
424 | Failed Dependency | [RFC4918] |
425 | Too Early | [RFC8470] |
426 | Upgrade Required | [RFC9110, Section 15.5.22] |
427 | Unassigned | |
428 | Precondition Required | [RFC6585] |
429 | Too Many Requests | [RFC6585] |
430 | Unassigned | |
431 | Request Header Fields Too Large | [RFC6585] |
432-450 | Unassigned | |
451 | Unavailable For Legal Reasons | [RFC7725] |
452-499 | Unassigned | |
500 | Internal Server Error | [RFC9110, Section 15.6.1] |
501 | Not Implemented | [RFC9110, Section 15.6.2] |
502 | Bad Gateway | [RFC9110, Section 15.6.3] |
503 | Service Unavailable | [RFC9110, Section 15.6.4] |
504 | Gateway Timeout | [RFC9110, Section 15.6.5] |
505 | HTTP Version Not Supported | [RFC9110, Section 15.6.6] |
506 | Variant Also Negotiates | [RFC2295] |
507 | Insufficient Storage | [RFC4918] |
508 | Loop Detected | [RFC5842] |
509 | Unassigned | |
510 | Not Extended (OBSOLETED) | [RFC2774][Status change of HTTP experiments to Historic] |
511 | Network Authentication Required | [RFC6585] |
512-599 | Unassigned |