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HTTP Status Codes Reference
Complete reference guide to all HTTP status codes. Browse by category or use the search to find specific codes.
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Below is a complete list of HTTP status codes grouped by category. Click any code to see a detailed explanation including RFC references and common use cases.
Visible rows:
0
1xx Informational
4 codes
2xx Success
10 codes
3xx Redirection
9 codes
4xx Client Error
29 codes
5xx Server Error
11 codes
| Code | Title | Category | Description |
|---|---|---|---|
| 100 | Continue | 1xx | The server has received the request headers and the client should proceed to send the request body. |
| 101 | Switching Protocols | 1xx | The server is switching protocols as requested by the client via the Upgrade header. |
| 102 | Processing | 1xx | The server has received and is processing the request, but no response is available yet (WebDAV). |
| 103 | Early Hints | 1xx | The server can send early hints to preload resources while the final response is being prepared. |
| 200 | OK | 2xx | The request has succeeded. The meaning of the success depends on the HTTP method used. |
| 201 | Created | 2xx | The request has been fulfilled and has resulted in one or more new resources being created. |
| 202 | Accepted | 2xx | The request has been accepted for processing, but the processing has not been completed. |
| 203 | Non-Authoritative Information | 2xx | The request was successful but the enclosed payload has been modified by a transforming proxy. |
| 204 | No Content | 2xx | The server has successfully fulfilled the request and there is no additional content to send. |
| 205 | Reset Content | 2xx | The server has fulfilled the request and desires that the user agent reset the document view. |
| 206 | Partial Content | 2xx | The server is delivering only part of the resource due to a range header sent by the client. |
| 207 | Multi-Status | 2xx | Provides status for multiple independent operations (WebDAV). |
| 208 | Already Reported | 2xx | The members of a DAV binding have already been enumerated in a preceding part of the response (WebDAV). |
| 226 | IM Used | 2xx | The server has fulfilled a GET request for the resource, and the response is a representation of the result of one or more instance-manipulations. |
| 300 | Multiple Choices | 3xx | The target resource has more than one representation, each with its own specific location. |
| 301 | Moved Permanently | 3xx | The target resource has been assigned a new permanent URI and any future references should use the new URI. |
| 302 | Found | 3xx | The target resource resides temporarily under a different URI. |
| 303 | See Other | 3xx | The server is redirecting the user agent to a different resource that provides an indirect response to the request. |
| 304 | Not Modified | 3xx | A conditional GET request has been received and would have resulted in a 200 response if the condition was false. |
| 305 | Use Proxy | 3xx | The requested resource must be accessed through the proxy given by the Location field. |
| 306 | Unused | 3xx | This status code was used in a previous version of the specification and is no longer used. |
| 307 | Temporary Redirect | 3xx | The target resource resides temporarily under a different URI and the method must not change. |
| 308 | Permanent Redirect | 3xx | The target resource has been assigned a new permanent URI and the method must not change. |
| 400 | Bad Request | 4xx | The server cannot or will not process the request due to something perceived as a client error. |
| 401 | Unauthorized | 4xx | The request has not been applied because it lacks valid authentication credentials for the target resource. |
| 402 | Payment Required | 4xx | This status code is reserved for future use and is intended for digital payment systems. |
| 403 | Forbidden | 4xx | The server understood the request but refuses to authorize it. |
| 404 | Not Found | 4xx | The origin server did not find a current representation for the target resource or is not willing to disclose that one exists. |
| 405 | Method Not Allowed | 4xx | The method received in the request-line is known by the origin server but not supported by the target resource. |
| 406 | Not Acceptable | 4xx | The target resource does not have a current representation that would be acceptable to the user agent. |
| 407 | Proxy Authentication Required | 4xx | The client must first authenticate itself with the proxy. |
| 408 | Request Timeout | 4xx | The server did not receive a complete request message within the time it was prepared to wait. |
| 409 | Conflict | 4xx | The request could not be completed due to a conflict with the current state of the target resource. |
| 410 | Gone | 4xx | The target resource is no longer available at the origin server and this condition is likely permanent. |
| 411 | Length Required | 4xx | The server refuses to accept the request without a defined Content-Length header. |
| 412 | Precondition Failed | 4xx | One or more conditions given in the request header fields evaluated to false. |
| 413 | Content Too Large | 4xx | The request body is larger than the server is willing or able to process. |
| 414 | URI Too Long | 4xx | The target URI is longer than the server is willing to interpret. |
| 415 | Unsupported Media Type | 4xx | The origin server is refusing to service the request because the payload is in a format not supported. |
| 416 | Range Not Satisfiable | 4xx | None of the ranges in the request's Range header field overlap the current extent of the selected resource. |
| 417 | Expectation Failed | 4xx | The expectation given in the request's Expect header field could not be met. |
| 418 | I'm a Teapot | 4xx | This code was defined in 1998 as an April Fools' joke in RFC 2324, Hyper Text Coffee Pot Control Protocol. |
| 421 | Misdirected Request | 4xx | The request was directed at a server that is not able to produce a response. |
| 422 | Unprocessable Content | 4xx | The server understands the content type and syntax of the request body but was unable to process the contained instructions. |
| 423 | Locked | 4xx | The source or destination resource of a method is locked (WebDAV). |
| 424 | Failed Dependency | 4xx | The method could not be performed on the resource because the requested action depended on another action that failed (WebDAV). |
| 425 | Too Early | 4xx | The server is unwilling to risk processing a request that might be replayed. |
| 426 | Upgrade Required | 4xx | The server refuses to perform the request using the current protocol but might be willing to do so after the client upgrades. |
| 428 | Precondition Required | 4xx | The origin server requires the request to be conditional to prevent the lost update problem. |
| 429 | Too Many Requests | 4xx | The user has sent too many requests in a given amount of time (rate limiting). |
| 431 | Request Header Fields Too Large | 4xx | The server is unwilling to process the request because its header fields are too large. |
| 451 | Unavailable For Legal Reasons | 4xx | The server is denying access to the resource as a consequence of a legal demand. |
| 500 | Internal Server Error | 5xx | The server encountered an unexpected condition that prevented it from fulfilling the request. |
| 501 | Not Implemented | 5xx | The server does not support the functionality required to fulfill the request. |
| 502 | Bad Gateway | 5xx | The server, while acting as a gateway or proxy, received an invalid response from an inbound server. |
| 503 | Service Unavailable | 5xx | The server is currently unable to handle the request due to a temporary overload or scheduled maintenance. |
| 504 | Gateway Timeout | 5xx | The server, while acting as a gateway or proxy, did not receive a timely response from an upstream server. |
| 505 | HTTP Version Not Supported | 5xx | The server does not support, or refuses to support, the major version of HTTP that was used in the request. |
| 506 | Variant Also Negotiates | 5xx | The server has an internal configuration error: the chosen variant resource is configured to engage in transparent content negotiation itself. |
| 507 | Insufficient Storage | 5xx | The method could not be performed on the resource because the server is unable to store the representation needed to successfully complete the request. |
| 508 | Loop Detected | 5xx | The server terminated an operation because it encountered an infinite loop while processing a request (WebDAV). |
| 510 | Not Extended | 5xx | The policy for accessing the resource has not been met in the request. |
| 511 | Network Authentication Required | 5xx | The client needs to authenticate to gain network access. |
No HTTP status codes found
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Last updated: 21 Jun 2026
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