Most used http codes

List of HTTP status codes with several examples for each category:

1xx – Informational (Request received, continuing process):

100 Continue: The server has received the initial part of the request and will continue to process it.
101 Switching Protocols: The server is switching to a different protocol.
102 Processing: The request is being processed and may take a while to complete.
103 Early Hints: Used to return some response headers before the final response.

2xx – Success (The action was successfully received, understood, and accepted):

200 OK: The request was successful, and the server has returned the requested data.
201 Created: The request resulted in the creation of a new resource.
202 Accepted: The request has been accepted for processing but not yet completed.
204 No Content: The request was successful, but there is no data to return.
206 Partial Content: The server is returning only a portion of the requested resource.
207 Multi-Status: A status for multiple independent operations in a single request.

3xx – Redirection (Further action needs to be taken to complete the request):

300 Multiple Choices: The requested resource corresponds to multiple possibilities.
301 Moved Permanently: The requested resource has been permanently moved to a different URL.
302 Found: The requested resource is temporarily located at a different URL.
304 Not Modified: The client’s cached copy is up to date, and there’s no need to transfer the same data again.
307 Temporary Redirect: The request should be repeated with another URL.

4xx – Client Errors (The request contains bad syntax or cannot be fulfilled by the server):

400 Bad Request: The server cannot process the request due to malformed syntax or invalid parameters in the client’s request.
401 Unauthorized: Authentication is required, and the provided credentials are missing or invalid.
403 Forbidden: The client’s request is understood, but it’s refused due to lack of permission.
404 Not Found: The requested resource could not be found on the server.
405 Method Not Allowed: The requested HTTP method is not supported for the target resource.
406 Not Acceptable: The server cannot produce a response matching the list of acceptable values defined in the request’s headers.
409 Conflict: Indicates a conflict between the request and the current state of the target resource.
410 Gone: The requested resource is no longer available, and there is no forwarding address.
413 Request Entity Too Large: The request entity is larger than the server is willing to process.
429 Too Many Requests: The user has sent too many requests in a given amount of time (“rate limiting”).

5xx – Server Errors (The server failed to fulfill a valid request):

500 Internal Server Error: The server has encountered an unexpected condition that prevented it from fulfilling the request.
501 Not Implemented: The server does not support the functionality required to fulfill the request.
502 Bad Gateway: The server, acting as a gateway or proxy, received an invalid response from an upstream server.
503 Service Unavailable: The server is temporarily unable to handle the request due to overloading or maintenance.
504 Gateway Timeout: The server, acting as a gateway or proxy, did not receive a timely response from the upstream server.
505 HTTP Version Not Supported: The server does not support the HTTP protocol version used in the request.
507 Insufficient Storage: The server is unable to store the representation needed to complete the request.
508 Loop Detected: The server detected an infinite loop while processing the request.
510 Not Extended: Further extensions to the request are required for the server to fulfill it.
511 Network Authentication Required: The client needs to authenticate to access the network.