HTTP Response Status Codes

In this blog, we will talk about all lists of HTTP response status codes. Whenever a user browsing a website, they are requesting the data from the server. The server will response HTTP response status codes before the browser access and display the web page. If server works perfectly and the user successful browsing the website, they will receive a 200 OK HTTP status code. But if the web page doesn’t exist, they will receive 404 error page code that tell the browser and user the web page doesn’t exist.

There are 5 types of HTTP response status code, it starts from 1xx to 5xx and they are grouped in 5 difference classes such as 1xx informational responses, 2xx successful responses, 3xx redirections, 4xx client errors, and 5xx servers errors.

1xx Informational Response

When you received 1xx Informational response, it means that the HTTP request has been received and continue process.

  • 100 Continue
  • 101 Switching Protocols
  • 102 Processing (WebDAV)
  • 103 Early Hints

2xx Success

When you received HTTP 2xx success response, it means the request was successfully received, understood and accepted.

  • 200 OK
  • 201 Created
  • 202 Accepted
  • 203 Non-Authoritative Information
  • 204 No Content
  • 205 Reset Content
  • 206 Partial Content
  • 207 Multi-Status (WebDAV)
  • 208 Already Reported (WebDAV)
  • 226 IM Used

3xx Redirection

When you received HTTP 2xx success response, it means the browser need to take further action in order to complete the request.

  • 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 Errors

When you received HTTP 4xx Client Errors, it means that the request contains bad syntax or cannot be fulfilled.

  • 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
  • 420 Enhance Your Calm (Twitter)
  • 422 Unprocessable Entity (WebDAV)
  • 423 Locked (WebDAV)
  • 424 Failed Dependency (WebDAV)
  • 425 Too Early
  • 426 Upgrade Required
  • 428 Precondition Required
  • 429 Too Many Requests
  • 431 Request Header Fields Too Large
  • 444 No Response (Nginx)
  • 449 Retry With (Microsoft)
  • 450 Blocked by Windows Parental Controls (Microsoft)
  • 451 Unavailable For Legal Reasons
  • 499 Client Closed Request (Nginx)

5xx Server Errors

When you received HTTP 5xx Server Errors, it means that the server failed to fulfil an apparently valid 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 (Apache)
  • 510 Not Extended
  • 511 Network Authentication Required
  • 598 Network Read Timeout Error
  • 599 Network Connect Timeout Error