Demystifying HTTP Status Codes A Quick Guide to Understanding Web Responses

HTTP status codes are three-digit numbers that indicate the outcome of an HTTP request made by a client to a server. They are part of the response header that servers send back to the client to provide information about the status of the request. Here are some commonly used HTTP status codes grouped by their general categories:

1xx Informational:

100 Continue: The server has received the initial part of the request, and the client can proceed with sending the remainder.
2xx Success:

200 OK: The request was successful.
201 Created: The request has been fulfilled, and a new resource has been created.
204 No Content: The server successfully processed the request, but there is no additional content to send in the response.
3xx Redirection:

301 Moved Permanently: The requested resource has been permanently moved to a new location.
302 Found (or 307 Temporary Redirect): The requested resource has been temporarily moved to another location.
4xx Client Errors:

400 Bad Request: The server cannot understand the request.
401 Unauthorized: Authentication is required and has failed or has not been provided.
403 Forbidden: The client does not have permission to access the requested resource.
404 Not Found: The requested resource could not be found on the server.
5xx Server Errors:

500 Internal Server Error: A generic error message returned when an unexpected condition was encountered on the server.
502 Bad Gateway: The server, while acting as a gateway or proxy, received an invalid response from the upstream server.
503 Service Unavailable: The server is not ready to handle the request. Common causes include temporary overloading or maintenance of the server.
These are just a few examples, and there are additional status codes with specific meanings. HTTP status codes provide important information about the result of an HTTP request, helping both clients and servers to understand and handle the communication appropriately.
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