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NexoraHTTP™ — HTTP Status Code Guide

Search and inspect all standard HTTP status codes (2xx, 3xx, 4xx, 5xx) with meanings, common causes, and technical developer solutions.

200 OK

Request Succeeded

Standard response for successful HTTP requests. The payload returned depends on the request method.

201 Created

Resource Created

Request succeeded and a new resource has been created (common for POST requests).

301 Moved Permanently

Permanent Redirect

The requested resource has been definitively moved to a new URL. Passes SEO link equity.

302 Found (Temporary Redirect)

Temporary Redirect

The target resource resides temporarily under a different URI.

400 Bad Request

Malformed Request

Server cannot process the request due to client error (e.g. malformed syntax, invalid JSON).

401 Unauthorized

Authentication Required

The client must authenticate itself to get the requested response.

403 Forbidden

Access Denied

The client does not have access rights to the content.

404 Not Found

Page Not Found

The server cannot find the requested resource URL on the server.

429 Too Many Requests

Rate Limit Exceeded

The user has sent too many requests in a given amount of time (Rate Limiting).

500 Internal Server Error

Server Exception

The server has encountered a situation it does not know how to handle or unhandled runtime crash.

502 Bad Gateway

Invalid Gateway Response

The server acting as a gateway/proxy received an invalid response from upstream server.

503 Service Unavailable

Server Overloaded

The server is not ready to handle the request due to maintenance or overload.

504 Gateway Timeout

Upstream Timeout

The gateway/proxy server did not receive a timely response from the upstream server.