HTTP 状态码
按类别浏览所有 HTTP 状态码及描述。
100
1xx
Continue
The server has received the request headers and the client should proceed to send the request body.
101
1xx
Switching Protocols
The requester has asked the server to switch protocols and the server has agreed to do so.
200
2xx
OK
The request has succeeded.
201
2xx
Created
The request has succeeded and a new resource has been created as a result.
202
2xx
Accepted
The request has been received but not yet acted upon.
204
2xx
No Content
The server successfully processed the request but is not returning any content.
206
2xx
Partial Content
The server is delivering only part of the resource due to a range header sent by the client.
301
3xx
Moved Permanently
The URL of the requested resource has been changed permanently. The new URL is given in the response.
302
3xx
Found
Tells the client to look at another URL. Temporary redirect.
303
3xx
See Other
The response can be found under a different URL using the GET method.
304
3xx
Not Modified
The resource has not been modified since last request. Cached version is still valid.
307
3xx
Temporary Redirect
Redirect to another URL, preserving request method. Temporary.
308
3xx
Permanent Redirect
Permanent redirect that preserves the request method.
400
4xx
Bad Request
The server could not understand the request due to invalid syntax.
401
4xx
Unauthorized
Authentication is required and has failed or has not yet been provided.
403
4xx
Forbidden
The client does not have access rights to the content.
404
4xx
Not Found
The server can not find the requested resource.
405
4xx
Method Not Allowed
The request method is known by the server but is not supported by the target resource.
408
4xx
Request Timeout
The server would like to shut down this unused connection.
409
4xx
Conflict
The request could not be completed due to a conflict with the current state of the resource.
410
4xx
Gone
Access to the target resource is no longer available and this condition is likely to be permanent.
413
4xx
Payload Too Large
The request entity is larger than the server is willing or able to process.
414
4xx
URI Too Long
The URI requested by the client is longer than the server is willing to interpret.
415
4xx
Unsupported Media Type
The media format of the request is not supported by the server.
422
4xx
Unprocessable Entity
The request was well-formed but was unable to be followed due to semantic errors.
429
4xx
Too Many Requests
The user has sent too many requests in a given amount of time (rate limiting).
500
5xx
Internal Server Error
The server has encountered a situation it does not know how to handle.
501
5xx
Not Implemented
The request method is not supported by the server and cannot be handled.
502
5xx
Bad Gateway
The server, while working as a gateway, received an invalid response from the upstream server.
503
5xx
Service Unavailable
The server is not ready to handle the request. Common causes: maintenance or overloaded.
504
5xx
Gateway Timeout
The server is acting as a gateway and cannot get a response in time.
505
5xx
HTTP Version Not Supported
The HTTP version used in the request is not supported by the server.
关于本工具
HTTP 状态码参考是一个查询工具，涵盖 HTTP 协议中定义的所有主要状态码，按类别组织。
代码分为五类：1xx（信息性）、2xx（成功）、3xx（重定向）、4xx（客户端错误）和 5xx（服务器错误）。每个条目包含代码编号、名称和详细描述。
使用方法
- 在搜索框中输入代码编号、名称或描述关键字。
- 使用类别过滤器仅显示特定范围的代码。
- 在代码卡片中查看状态编号、名称和描述。
- 找到所需代码，用于 API 开发或调试。
使用场景
选择 API 响应的正确状态码、调试 Web 服务器错误、学习 HTTP 协议或编写 REST API 文档时使用。
常见问题
- 是否包含所有 HTTP 状态码？ — 是的，包含 RFC 7231 及相关标准中定义的所有主要代码。
- 4xx 和 5xx 错误有什么区别？ — 4xx 代码表示客户端错误（错误请求、未授权等）。5xx 代码表示服务器端错误（内部错误、过载等）。
- 301 和 302 有什么区别？ — 301 是永久重定向（URL 已永久更改）。302 是临时重定向。出于 SEO 目的，永久移动请使用 301。