What are HTTP response codes for?

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HTTP response codes were introduced to provide a standardized way of communicating between web servers and clients (such as web browsers). They provide a means of conveying information about how the server processed the request, what results were returned, and how the client should respond to those results.

HTTP response codes were first introduced in the original HTTP/1.0 specification in 1996. They were created to facilitate communication between web servers and clients by providing clear and understandable signals about what is happening with requests and how clients and servers should interact in various situations.

HTTP response codes have several important functions:

Understanding the Result of a Request Response codes tell clients sweden email list whether a request was successful or whether an error occurred. This allows clients to respond appropriately to the result.
Categorizing errors : Response codes separate errors into different categories, such as client errors and server errors. This helps identify where exactly the problem occurred.
Redirection and Refresh 3xx response codes inform clients that a redirection or additional action is required to complete a request.
Caching Controls : The 2xx and 3xx response codes contain information about whether the query results can be cached and for how long.
Error handling : Error codes allow web servers and developers to easily determine what went wrong and provide information about the error to the user.
HTTP response codes are three-digit numeric codes that are returned by a web server in response to requests sent by client programs such as web browsers. Response codes provide information about how the server processed the request and what result was obtained.