HTTP Status Code

HTTP status codes are a standardized set of codes that web servers use to communicate the status of HTTP requests and responses to clients, such as web browsers or other software applications.

Whenever a client makes a request to a web server, the server responds with an HTTP status code to indicate the success or failure of the request. There are many different status codes, each with a specific meaning and use case.

The status codes are grouped into five classes, each of which represents a different category of response:

- 1xx Informational

- 2xx Success

- 3xx Redirection

- 4xx Client Error

- 5xx Server Error

Some examples of common HTTP status codes include:

- 200 OK: The request was successful, and the server has returned the requested data.

- 404 Not Found: The server was unable to find the requested resource.

- 500 Internal Server Error: The server encountered an unexpected error and was unable to fulfill the request.

HTTP status codes are an important part of the HTTP protocol and are used by web developers and Server Administrators to diagnose and troubleshoot issues with web applications and services.

Here's a list of some of the most common HTTP status codes:

1xx Informational:

- 100 Continue

- 101 Switching Protocols

- 102 Processing

- 103 Early Hints

2xx Success:

- 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

3xx Redirection:

- 300 Multiple Choices

- 301 Moved Permanently

- 302 Found

- 303 See Other

- 304 Not Modified

- 305 Use Proxy

- 307 Temporary Redirect

- 308 Permanent Redirect

4xx Client Error:

- 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 Payload Too Large

- 414 URI Too Long

- 415 Unsupported Media Type

- 416 Range Not Satisfiable

- 417 Expectation Failed

- 418 I'm a teapot

- 421 Misdirected Request

- 422 Unprocessable Entity

- 423 Locked

- 424 Failed Dependency

- 425 Too Early

- 426 Upgrade Required

- 428 Precondition Required

- 429 Too Many Requests

- 431 Request Header Fields Too Large

- 444 Connection Closed Without Response

- 451 Unavailable For Legal Reasons

- 499 Client Closed Request

5xx Server Error:

- 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

- 510 Not Extended

- 511 Network Authentication Required

- 599 Network Connect Timeout Error